question: Dear Doctors, First let me say thank you for this site. It is a relief to read your quick replies and I hope i may have an answer to my concerns soon. I am a 29 year old male, 6.0 ft tall and i believe in fairly good shape. My history is that i pre hypertension, have continues tachycardia (rest bpm 100 -107), palpitations and asthma. I have seen a cardiologist about the heart rate/high blood pressure. I have been prescribed a calcium channel blocker ( i dont handle beta blockers well) as well as diagnosed with MVP. The issue is as follows: I have noticed an alarming trend that after exercising my heart rate rises to 130bpm+ for a few hours, i feel extremely faint, and extremely tired (sometimes falling asleep without wanting too). I have also noticed sudden twinge like pain near my left breast (it doesnt feel like a muscle spasm) and headaches to the point of wanting to vomit. My cardiologist is booked for a month! Any ideas or recommendations would greatly be appreciated!