Lamictal has always been kind of a strange mood stabilizer for me. It never stabilized me without the help of other meds. I am currently on 400 mg. On 200 mg, I remember there were times I was very depressed on it, and I would swing from mania to depression/"switching" of moods quite easily. It wasn't until I reached 300-350 mg when I started noticing somewhat of a difference.

Definitely talk to your pdoc about what you are experiencing. It may or may not be the Lamictal, there are multiple factors that need to be considered where a doctor will have to explore that further with you. I hope you feel better soon.