In my experience with Quetiapine (the name I know it by) I found that it did increase my appetite and therefore made me gain weight. I also found that I was immensely tired, fatigued, almost to the point of sleeping at college! I couldn't concentrate much, and felt tired even after a decent night's sleep. However, you are on quite a low dose at the moment, so hopefully this shouldn't affect you too much, at least not as badly as it did me. x