I tried Lamictal years ago and it didn't set well with me so I stopped...everyone is different . Anyways now I am also taking Seroquel in part for sleep and with other meds to help with anxiety and depression issues. Seroquel has really helped with my insomnia and to calm me at night. You will need to get the does just right though . As far as weight gain eh maybe a pound or two nothing major but I also go to the gym and try to eat healthy.

I would definitely talk to your doc and be a bit more informed about your meds.