am a 65 yr. old female. i take lithium as my mood stabilizer and klonopin for my anxiety. lately ambien does nothing for the racing thoughts and insomnia. my p/doc suggested taking a small amount of seroquel for sleep. i've taken as little as 6 mg. a nite, and it works great...however, all my research indicates a lot of weight gain on it. i exercise daily. has anyone used seroquel for sleep in small doses and not gained weight. your experiences, please.