I only took Zyprexa once every week b/c of severe insomnia and so...

I only took Zyprexa once every week b/c of severe insomnia and sometimes 2x's a months w/ 3 days intervals to catch up on sleep. I was doing fine just eating ridiculously healthy and exercising but the hunger came and I could no longer sleep because it was so severe I would wake up in the night ravished and couldn't sleep until I ate so I stopped the zyprexa, which I wasn't even taking much in the first place!! I've been off for a week and I would like to know from those who went off of it, how long does it take for the hunger to back to normal? They want to try seroquel but I'm scared that will keep it going, so would like to get it back to normal before trying something else. Need sleep! last semester of school, need to pass. Thank you. BTW, works great for sleep, did save my life in that aspect.