Call your doctor. They can do a blood test to see where your lamotragine levels are at. They may be to high. I am on it myself and so is my daughter. Been taking it for 4 years. They had lower are dose due to complete brain fog. I am not trying to tell you what to do. If you are on medications like this. Make sure your doctor knows what is going on. They question you saying you did not have this symptoms when you started. Body chemistry can change at any time with lamotragine. Good luck.