Hlo doctor I am otb patient since 8 months everything is going good but from one month my doc notice heart murmur & suggested echo, I done with echo which was normal than again he said repeat echo because sound doesn't seem normal than I again did echo with another hospital where it also came normal only my heart beat comes very high around 130 to 150 apart this everything is normal.. now doctor said it is may be normal murmur.. but still i didn't feel comfortable heart palpitations like heart he shaking & I am going to faint all the time happening what it could be due to medicine side effects ? Plz suggest next step?