I've been on Trileptal for about a month now and am up to 900 mg,...

I've been on Trileptal for about a month now and am up to 900 mg, though I expect to come down from this dose because of the dizziness it causes. I am also troubled by a numb tongue, bad taste in my mouth, and swollen lips. One thing I'm experiencing that I haven't read about yet is an increase in the white part of certain fingernails--the white area at the tips of both ring fingers has doubled. At first I thought this might be due to kidney disease, but now I'm wondering if it's simply due to decreased blood supply to my fingers, which do feel a little numb. I'd appreciate anyone's feedback on this.