Hello. I really feel for you. I personally believe nobody should ever have to be on TWO medications at the most. Unless one has been diagnosed with 5-6 disorders..maybe.
Lamictal does not make you gain weight...for most anyway.
Lexapro may be doing it. But Zyprexa is probably as I am sure you well know the worst for giving people weight gain.
Abilify is supposed to be for Bipolar and my doc says will help with stress and anxiety too. If it works..you can knock out both the Lam and the Lex.
I am not too familiar with Wellbutrin. We just have to make sure we exercise enough..the ones who gain weight. Hope that helps.