I've been on all three of those meds...not at the same time though. Zyprexa made me sleep like crazy. I'm on lamictal now and I don't think it's really affecting my sleep pattern. As for the lexapro most ADs used to make me sleepy so maybe it's that? obviously all meds act differently with different people so it's really anyone's guess.
Bipolar, panic disorder, PTSD, PCOS, hashimoto's disease/hypothyroidism, acid reflux, and in the process of being diagnosed with either crohns, colitis, or even lupus...who knows really! the docs sure don't lol. Now possibly even celiacs disease!Lots of tests coming up so hopefully I'll know more soon. Too many meds to list!