Contact the prescribing pdoc and tell him or her exactly the way you are feeling,they may be able to adjust or change your meds.
I take Lamictal too, but for some people it can bring on mania, while for some it doesn't.
My brother went wild when switched to Lamictal,failed to contact his doc and in time ended up signing himself in the hospital. I always stress that people or their family should call the pdoc if they are not feeling right,etc. cause sometimes meds can do this and need adjustment. Like anything, when the doses or med is correct, can make all the difference for a good outcome.
Lots of luck with this