I'm taking Lamotrigine (Lamictal). I believe that it usually treats epilepsy, but it's been found to treat bipolar too. This is the only mood stabilizer my pdoc has prescribed me (just increased to 150 mg daily). I personally have no real complaints about it, but all meds work differently with everyone.

When I started on the starter kit, with the 25 mg, I had no appetite, and I slept very well. When I iincreased to 50 mg, I still had no appetite, and I was up all night. When I increased to 100 mg, I decided to start taking it in the morning, to avoid the insomnia. I was just increased to 150 mg and my appetite has gone away again, but really besides that I haven't experienced any side effects. I did read that one side effect is a stuffy nose, which I have had constantly since I started on the Lamictal, but my pdoc didn't even know that was a symptom and thought it was kind of strange. So maybe I had the stuffy nose before then and just didn't realize it. Who knows.

Anyway, it could be that if the Lamictal does stabilize your mood swings a little, then it could be bipolar. But it took my pdoc 4 years of observation to finally diagnose me (partly due to heavy drinking, which I have finally been able to stop). But they didn't diagnose you already? Then maybe they're waiting to see how the mood stabilizer affects you before they officially diagnose you. I'd ask your doctor what the plan is, if you're confused, and if you're not sure that you've been diagnosed or not.

Good luck! Let me know how it goes, I'm always curious about other people's experiences with Lamictal.

RK