I'm prescribed Prozac, Vyvanse, bupropion and would frequently take caffeine for ADHD combined inattentiveness/hyperactivity. I noticed that taking caffeine especially would spark extreme anxiety. I lowered my caffeine dose to &lt;50mg a day and have been off it for a few days now. 

I certainly feel *less* physical anxiety. Not as shakey. But the anxiety is still there. That physical feeling in your stomach, along with anxiety-provoking racing thoughts, still remains salient. 

Caffeine was amplifying my anxiety, not causing it. Quitting caffeine, for me, will help reduce anxiety but it is not treating the root issue. 

I was wondering if anybody has a similar experience and if they managed to take stimulants without amplifying anxiety.