It often starts quietly. A tightness in the chest that comes and goes. A racing or fluttering heartbeat that appears out of nowhere. Shortness of breath that doesn’t match your activity level. A fatigue so deep it feels disproportionate to your day. You may try to explain it away, until it becomes persistent enough to seek care.
And then comes the phrase many people know too well: “It’s probably stress”.
Sometimes stress truly is the cause. Chronic stress can produce powerful physical symptoms that feel frightening and real. But here’s the danger: heart disease presents in the same vague, nonspecific ways.1
When stress becomes the default explanation instead of a diagnosis reached after proper testing, heart disease can be missed — sometimes until it becomes life-threatening.1
Knowing how to tell the difference, and knowing which diagnostic tests actually matter, can save your life.
What Stress Does To The Body
Stress is not imaginary, and it is not limited to the mind. When the body perceives threat, the nervous system releases adrenaline and cortisol. As these stress hormones are released, your heart rate increases, your blood pressure rises, your breathing becomes rapid, and your digestion slows.2
When stress becomes chronic, these changes don’t fully turn off. The heart stays under strain. Blood pressure remains high. Inflammation increases. And over time, stress has been shown to contribute directly to the development of heart disease.2
This is why symptoms like chest tightness, palpitations, dizziness, shortness of breath, nausea, and crushing fatigue can occur during stress — and why panic attacks can feel indistinguishable from a heart attack.2
But here’s the critical truth: stress does not protect you from heart disease. In many cases, it increases the risk. That’s why stress should never be assumed as the cause before heart conditions are properly ruled out.3
Heart Disease Commonly Mistaken For Stress
Several serious types of heart disease are frequently mislabeled as anxiety, especially when symptoms don’t match stereotypical expectations.
- Coronary artery disease can cause chest pressure, jaw or arm discomfort, shortness of breath, and nausea, particularly with exertion or emotional stress. These symptoms may ease with rest, which can make them easy to dismiss.4
- Arrhythmias cause abnormal heart rhythms that can feel like fluttering, pounding, skipped beats, or sudden weakness. Because they can come and go, they are often missed unless monitored over time.4
- Heart failure, particularly in early stages, may present as fatigue, exercise intolerance, swelling, or shortness of breath when lying flat. Many people are told they are simply stressed, deconditioned, or aging.4
- Microvascular disease and ischemia without major blockages affect small blood vessels and are more common in women and people of color. These conditions often do not appear on basic tests, leading to repeated dismissal.4
- Even stress itself can directly injure the heart. Stress-induced cardiomyopathy shows how emotional or physical stress can temporarily weaken heart muscle, mimicking a heart attack.3
Why Vague Symptoms Are So Dangerous
Heart disease does not always announce itself with dramatic pain. Many people experience weeks or months of warning signs that are subtle, intermittent, or easy to rationalize.5
Fatigue becomes “burnout.” Chest discomfort becomes “anxiety.” Shortness of breath becomes “being out of shape.”
When symptoms are minimized early, diagnostic testing is delayed. And with heart disease, delays cost time that cannot be recovered. Early evaluation often means simpler treatment and better outcomes. Late diagnosis often means emergencies, hospitalizations, and long-term damage.5
Why Black And Brown Communities Face Greater Risk Of Dismissal
Black and Brown people are more likely to experience delayed diagnosis of heart disease, not because symptoms are different, but because they are interpreted differently.5
Higher rates of hypertension (high blood pressure), diabetes, and chronic stress increase cardiac risk. At the same time, symptoms are more likely to be attributed to stress, lifestyle, or mental health. Women of color, in particular, are frequently told their symptoms are anxiety-related even when heart disease is present.5
This mismatch, paired with delayed testing, leads to more advanced heart disease at diagnosis and worse outcomes. In this context, self-advocacy is not optional. It is protective.5
The Diagnostic Tests That Help Clarify The Picture
When symptoms could be related to the heart, clarity comes from understanding not just which tests are ordered, but what questions those tests are designed to answer. Too often, people are reassured after a single normal result without understanding what has actually been ruled out and what hasn’t.
- Electrocardiogram (EKG)
An electrocardiogram, or EKG, is usually the first test ordered. It measures the heart’s electrical activity and can identify abnormal rhythms, signs of prior heart injury, or strain on the heart muscle. But an EKG is a snapshot. If an abnormal rhythm isn’t happening at that exact moment, it may not appear. A normal EKG does not rule out heart disease.6 - Blood tests
Blood tests, particularly troponin levels, look for evidence of heart muscle damage. These tests are essential when someone presents with chest pain or concerning symptoms, but they are designed to detect active injury. They do not identify early coronary disease, poor blood flow, or structural problems that haven’t yet caused damage.6 - Echocardiogram
An echocardiogram uses ultrasound to examine the heart’s structure and pumping ability. It can reveal weakened heart muscle, valve problems, fluid buildup, or early signs of heart failure. For people with vague symptoms like fatigue or shortness of breath, this test often provides critical information that blood work alone cannot.6 - Stress Tests
Stress testing evaluates how the heart performs under physical or chemical stress. It can uncover problems with blood flow that don’t appear at rest. However, even stress tests can miss conditions affecting small blood vessels, which are more common in women and people of color.6
Advanced Imaging
More advanced imaging, such as cardiac CT angiography, can visualize plaque buildup in coronary arteries before blockages become severe. This kind of testing is especially valuable for people with persistent symptoms and risk factors who have had “normal” initial tests.6
The key point is this: no single test tells the whole story. Symptoms, risk factors, and test results must be interpreted together. If your symptoms persist, it is medically reasonable to continue the evaluation rather than closing the case prematurely.
How To Advocate When You’re Told “It’s Just Stress”
Advocating for yourself in a medical setting can feel intimidating, especially when symptoms are invisible or difficult to describe.7 But advocacy does not mean challenging your provider’s expertise.7 It means ensuring your concerns are fully evaluated.
When stress is raised as the explanation, it’s helpful to acknowledge it without allowing it to end the conversation.
You might say: “I understand that stress can cause physical symptoms. Given my symptoms and risk factors, what tests are we using to rule out heart causes before we conclude that stress is the primary issue?”
This framing signals collaboration while keeping the focus on safety.
If symptoms are ongoing or worsening, shift the conversation from reassurance to impact.
For example: “These symptoms are persistent and interfering with my daily life. I’m not functioning the way I normally do, and I’d like to understand what further evaluation is appropriate”.
If a provider suggests waiting, ask for a plan rather than an open-ended delay.
You can say: “If we’re taking a watchful approach, what specific symptoms or changes should prompt further testing? When should I follow up if this doesn’t improve”?
Documentation matters. If testing is declined, it is appropriate to ask:
“Can you document that cardiac causes were considered and explain why further testing isn’t indicated at this time”?
This isn’t confrontational, it creates accountability and clarity. Most importantly, trust patterns over isolated moments. If your body keeps sending the same signal, it deserves continued attention. Seeking a second opinion, asking for referral to cardiology, or returning when symptoms persist is not overreacting. It is responsible care.
A Call To Action For The NOWINCLUDED Community
Stress is real. Its effects on the body are real. But stress should never be used as a shortcut when heart disease is possible.
You are not dramatic for asking questions. You are not difficult for requesting tests. You are protecting your future. If you’ve ever been told your symptoms were “just stress” and later learned it was something more, your story matters.
Share your experience in the NOWINCLUDED app and let us know, What symptoms were dismissed? What finally led to answers?
Your voice could help someone else trust their body and demand the care they deserve.
References
- Williams, C. S. (2022, July 13). How to tell the difference between a heart attack and panic attack. Retrieved from American Heart Association: https://www.heart.org/en/news/2022/07/13/how-to-tell-the-difference-between-a-heart-attack-and-panic-attack
- Pietrangelo, A. (2025, July 1). The Effects of Stress on Your Body. Retrieved from Healthline: https://www.healthline.com/health/stress/effects-on-body
- Vaccarino, V., & Bremner, J. D. (2025). Stress and cardiovascular disease: an update. Nature Reviews Cardiology. doi:10.1038/s41569-024-01024-y
- Medline Plus . (2025, March 20). Heart Diseases. Retrieved from MedlinePlus : https://medlineplus.gov/heartdiseases.html
- Zakeri, M., Lal, L. S., Abughosh, S. M., Sansgiry, S., Essien, J., & Sansgiry, S. S. (2024). Racial and Ethnic Disparities in Perceived Health Status Among Patients With Cardiovascular Disease. Preventing Chronic Disease. doi:https://doi.org/10.5888/pcd21.240264
- NIH. (2024, December 27). Diagnosis. Retrieved from NIH – National Heart, Lung, and Blood Institute: https://www.nhlbi.nih.gov/health/coronary-heart-disease/diagnosis
- Werner, C. (2023, September 7). 10 Tips for How to Advocate for Yourself at the Doctor. Retrieved from Healthline: https://www.healthline.com/health/how-to-advocate-for-yourself-at-the-doctor
