Is the come down off of adderall (dextroamphetamine and racemic amphetamine) similar to the signs of a heart attack?

Sigh...: Ok - let's ignore the fact that the phrasing means i'm almost certainly answering a question about illegal presc. Drug abuse. No, the come-off from amphetamines is usually marked by loss of energy, depression of varying severities (depending on how much you've abused it), sleep disturbances, etc. The heart attack symptoms (chest pain, nausea, flushing, racing heart) usually come with the overdose.