every now and again i get a pulsing sensation right in the center of my upper torso. also when i strain my chest too much i get a sharp pain. the puse first started off in my abdomen region and moved up. it happenes every couple days or so. i noticed this problem after i got off a cycle of sus and d-bol. i have been off for about 4 months now and i still sometimes get these puses or "palpitations". i was just wondering if they were normal or if i should get checked out.