I stopped my stimulant and then started taking it again and my heart rate was a little high (Slightly over 100bpm) so I stopped taking it.

My heart rate was still high (106bpm) so I was put on atenolol (A beta blocker) and it went down.

I was then put back on a stimulant and it increased my heart rate a little and then I built tolerance and it went back down.

Eventually I'll stop the beta blocker and continue taking the stimulant if possible.