An hour or so after snorting meth, my heart rate would be normal.  Then
my heart rate would start to skyrocket after that even to 160 for many
more hours after that.  And then once the heart rate goes up after an
hour or so, I would have to go to the bathroom for number 1 really
frequently.  At around this time, I would feel tired and sleepy.  And
if I slept or just waited it out, I would feel ok and awake again.  I
get that with all kinds of stimulants now, caffeine, etc.

I assume the blood pressure rises at first then plateaus somehow.  But
is this sequence a normal reaction to stimulants?