WARNING!
Hi Stacy, you must google the side effects of Lithium. My brother who has bipolar used Lithium for a long time. In the begining it helped my brother but then it made his bipolar symptoms more worse and also made him bald and hypothyroid. It can harm your liver and kidneys too. Instead of Lithium you can try Magnesium for your sleep problem. This is my personal observation that Lithium has ruined my brother's life.