It is so enlightening to read your experiences. For me, Lamictal was a lifesaver. Before that I was just on lithium. It felt like I had a ceiling on themania, but no floor for the depression. Lamictal helped immensely. I believe it is primarily used for bipolar depression. My sister has an anxiety disorder and her NP gave her lamictal. She developed many of the side effects people have been discussing. They finally listened to her and gave her zoloft instead. The sister that I know and love returned.
Good luck talking with your doc!