Hi guys..iv been on olanzapine for a few days now for Anxiety and to help my sleep..i keep hearing you gain weight on them..ahrrrr...is the weight gain because it makes you eat more ? Or because it just puts on the weight..also how long do you have to be on this to be fully efective...im taking 5mg at night and slept well last night..but in the mornings i feel a bit heavy and unsocialbal...is this norm..is the weight gain on the higher dose..any positive info would be good..thanks