I have just weaned myself Keppra and now I am on lamictal. In the past week I have experienced numbness in my face, then my neck, back and legs. The first day I left work and I was studdering. Since then every morning my face is numb every morning. I called my nuero and he wants to do a blood test. Does anyone know why or what he is looking for? He lowered my dose to 150 until he gets the results.