I'm a very healthy 27-year-old female, non-smoker. I checked into the hospital with palpitations, 2 fainting spells, dizziness, and shortness of breath. In 1 out of 5 ECGs (the only one taken immediately after I fainted), they found a Right Bundle Branch Block, which they did not find again on the other 4 ECGs they took. I also had a slightly lower-than-normal Echocardiogram (52% Ejection Quotient). Thyroid functioning, all the blood tests were normal. While in the hospital, they noticed my heart rate dropping below 40 while I slept, and I noticed it dropping below 50 quite often while I was resting and awake. Diagnosis was myocarditis and they sent me home with some pain medication for headaches and chest pains, and with very little sense of prognosis. Family history includes a couple of heart attacks and bradycardia in my father (he's had it since he was my age).
I continue to have problems (now two weeks out of the hospital). Occasionally, for no apparent reason, I get very dizzy, have trouble breathing, and feel like my heart rate is too slow, as though it is struggling to pump. This also occurs if I walk for more than about 5 minutes. I'm not sure what else might be the cause, or whether it's normal for myocarditis to have intermittent symptoms like this. I saw a whole team of Internal Medicine doctors at a prestigious university hospital, and Infection Disease specialist (due to travel history in Africa), but no cardiologist. Any advice? Does this seem accurate or like I should get this checked out further?