ok I have 110/70BP and a resting pulse around 60. I take fairly low doses of adderall (20-45mg), always spaced out, like 20mg then 15mg four hours later. anyway, when I am resting I can feel my heartbeating more but if I having crazy sex I never notice it. It creeps me out that I can feel it when I am reading or studying or something. 10 hours ago I took 25mg and fell asleep an hour later and slept for 4 hours. this is very common with me. when I got up i took 10mg more and read for about an hour. then I fell asleept for another hour. I took 5mg more about 1.5 hours ago. now I am done. so what's up with heart palpitation thingy? Is it perception/hypochondria? I am going to the grocery store to get a couple things and I will check my BP. good news is that I'm freakin starved and clearly very little effect from the adderall. after it wears off I get a little tweaky but while I am on it I am usually a deaf mute or asleep.