I have bipolar 1 and schizophrenia. When I was young I suffered with anorexia but had therapy and although I have bad days I usually cope. To stop weight gain from 20mg olanzapine I usually only eat one small meal once a day and that slowed the weight gain right down. However I still gained up to a size 14-16 so about a week ago I stopped eating and started taking laxatives I've lost a stone so far but surely it's ok as I'm fat? I will stop once I lose the weight so this can't hurt right?