I'm 38, in decent shape and exercise regularly. I had my heart checked out 2 years ago (EKG, echo, stress test). Everything was normal. I do get bouts of PVCs at times but my cardiologist told me that they are benign and that I should ignore them. In bad times I can have a few hundred a day, but these bad periods only last for 1-3 weeks typically.
As of the last 6 weeks I've been getting this mysterious dizzy/lightheaded spells, that come out of nowhere. I'll literally be feeling perfect then I instantly get dizzy/lightheaded, and will feel that way for 30-60 min on average.
I've narrowed it down to anxiety, lack of sleep, or heart block. Now I am a phobic person but the thing is I will get these spells at times I'm happy and not worrying.
So I asked my cardio about heart block and he asked me what my resting HR was. I told him 57-65 bpm. Then he asked if my HR goes up when I exercise, and I said most definitely yes...up to 175 when I do sprints. He then concluded that I do not have heart block based on that alone. Is that true and can he be certain??? Is it really that simple to rule it out??