Welcome to HealingWell and to the bipolar forum. You have a really interesting question. I don't think lamictal is a stimulant, but I really don't know. I would definitely ask your doctor. You're absolutely right that you have a pretty unique situation. I'm sure it must be really frustrating at times. You don't even need to make an appointment with your doc -- just give him/her a call.
Sorry I can't be more help.
Co-Moderator, Bipolar Forum