I used to drink a lot of coffee - 10 shots of espresso a day - but it didn't excite me or interfere much with my sleep. (alcohol did mess with sleep). Talking rapidly, getting Tongue tied, frenetically cleaning the house, ironing, filing have usually been good indicators for me that I am heading into mania. I can understand your T's response.
But zombie meds are not optimal either. Lithium doesn't do that to me.
Hope you get it sorted out soon.