I'm 28 and don't smoke. Can I still have an AFib or Angina if my EKG, chest X-ray, blood, and stress test came back normal? One EKG showed abnormal heart rhythm but 4 others (taken within 5 month span) showed normal heart rhythm. I'm really scared.

Not likely. AFib and angina are definitely unlikely in a person your age with the results you described. You should think about other causes. And "abnormal heart rhythm" is too vague.
Stay calm. 28 year old woman with cardiac concerns. Please stay calm and follow up with your physician. Hypertension is a disease with no symptoms that can affect young people, as can arrhythmia. EKG is one point in time and arrhythmia can be episodic and needs to be investigated with a ZIO patch or holter/event monitoring. You need a cardiology consult. Stay strong and manage it. You can do it, good luck.

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Ekg, stress test, sonogram, chest x ray, blood tests. Heart is fine? Just turned 22.

Why do you ask? You list no cardiac symptoms. Let me guess -- you had a few palpitations / heart doing flip-flops. If you have fewer than 5 of these per minute, or if your physician's checked you out and they're not the nasty kind, learn to ignore them and consider cutting back the caffeine. If you can keep in sports, or climb three flights of stairs, i'd stop worrying and get on with being a young man. Read more...

How accurate is a EKG, blood, and a stress test to rule out heart issues or angina? I'm 26, overweight, healthy but worry my gerd chest pains is my heart. My troponin I levels were < 0.02. My bp is sometimes elevated and heartrate goes down to 53bpm.

Manage your GERD. One trick may be elevating the head of your bed on cinder blocks. General physical conditioning can help also. This is not heart pain. If you are offered meds for GERD, please use them faithfully. Read more...
Highly accurate. The combination of those 3 being negative, in your age category are reassuring and make the chance of a fatal cardiac condition being under 10% and likely less than that. A lower heartrate is not a bad thing. I would recommend weight loss and increased diet and exercise. Read more...