I just want to make sure these are not side effects of allergies, but rather possible heart block from my med!? I am 24 years old
, have had more heart tests then most people who need it on this site. Echo, Stress tests, EKGs, Holters, all look good, just periods of inappropraite sinus tachycardia. Any input would be great, since I have started this new med, my pulse is very calm and normal again. I used to have constant pounding/tachy before. Thanks!