Can an ecg miss a heart attack

Also let me add I've had 4 ECG in total but still worried something is wrong. This is all after a viral infection and me stupidly googling why I was having palpitations. MYOCARDITIS. What if those 4 ECG aren't picking it up. One minute I was fine the next I gasped for air and went into a panic but even once I've calmed down I'm still getting twinges in my chest, an achy feeling left side of chest ( sometimes right) pain under arm pit. Aching left arm. This had been gping on for 2 weeks now . I don't know what to do anymore

One ECG might miss something but with four you are in the clear. Nothing there sounds like a heart attack. I presume they did blood tests to rule out any heart attack.

Yes with the first ECG I had blood test. My hearts still twinging a little and have bit of a burning feeling. I just feel strange.

I can assure you that they would not miss a heart attack or even a suspected one, they would check your troponin levels even if suspected, that's an enzyme your heart produces if it been damaged.

I had an issue when I went to the dentists, suddenly couldn't breathe, took me to the hospital next door, ECG showed some issues, so they took blood and tested it, troponin Nil, but came back with suspect blood clot, gave me clot busting meds, and 8 hours later more blood tests showed me in the clear, end result was had a had a false positive, as nothing more came of it, x-ray clear, and cat scan clear.