Zyprexa made me gain 90lbs in less than a year I almost doubled my body weight I was 100lbs to begin with now I've got down to 145lbs so another 20 to lose and ill be happy with my weight. I hear you about the hunger I was eating the whole time I wasn't sleeping. Horrible drug didn't work for me but pdoc refused to take me off it until I became obese I'm now on abilify it helps a bit and luckily gives me no weight gain