Currently on 500test e and 400deca/wk. To be honest not to sure if its real, no tell tale signs(still on week 5 so not sure yet). Any way, doing deadlifts and after the 4th set my heart starts doin about 200bpm! Maybe wasnt breathing right, dont know but took a couple minutes and pushed through a couple more different workouts before deciding to call it quits and go home. Its been about 2 hours now and has calmed down a little, but still at least over 100bpm. No chest pains or shortness of breath. Been lifting for years but never had this before, any suggestions of what it could be or how to remedy? Thanks