(((Jenna)))
My daughter is on Lithium. She has gained a lot of weight from it. It doesn't make her sick (nauseous) and she swears by it. She has been on it for well over a year now. She gets a level drawn very soon...
I can tell you from my own experience with medication that I do the same thing. I will quit something if I think it is making me feel worse. Not a good thing in the long run. Self medicating and self RX'ing is one of my bad habits... If you don't want to take it, that's ok. But at least tell your pdoc about the discontinuance.
I will promise to do the same the next time I adjust a dose...

Love ya,