Diagnosed Bipolar2, panic disorder and CPTSD.
My doc first put me on Lamictal which initially helped but eventually I developed tolerance that made it much less effective in controlling mania as well as depression.

Doc then put me on Zyprexa/Prozac which did WONDERS but made me FAT and UNMOTIVATED.
Weight gain is the single side effect that I will never be able to tolerate no matter what, given my history of Binge eating disorder and body dysmorphia. Debilitating combo of diagnoses.

I've been taking Prozac alone which has turned me into a paranoid manic mess. My doc now suggests treating me with Lithium monotherapy, says it's effective AND MOSTLY WEIGHT NEUTRAL.

Is it any more tolerable weight-wise compared to Zyprexa? Is a weight loss plan more doable with Lithium than Antipsychotics? Also does it have any potential effects on anxiety?