Three weeks ago I was put on Ritalin (Methylphenidate) for ADHD and my pdoc is seeing me every two weeks to monitor me for mania. So far I am doing fine and feel better able to concentrate and less distracted. My T is concerned and against me being put on a stimulant but I was really struggling with study. Basically it is very possible that a stimulant can cause mania. It is apparently very common.

As for ways to get mania to subside I have found anti-psychotics's to be very helpful as well as reducing stimulation by doing things like resting in a dark, quiet room can help a bit. Hope you find some peace soon.