I have been taking Lamictal for about 8 weeks now for depression....

I have been taking Lamictal for about 8 weeks now for depression. My docs have tried me on approximately 15 other antidepressants with no avail. I cannot take the side effects. ALL of them I stayed on for months to see if the side effects would go away. Zoloft was wonderful BUT gave me SEVERE diarrhea (last episode was 15 times in one day). So, I am trying to figure out if the Lamictal is giving me increased muscle/joint pain. I do have Fibromyalgia but I swear, since I've been on the Lamictal I feel like somebody wacked my knees and legs with baseball bats. This time last year I was walking/running 3-4 miles 3-4 days a week. Now I can't even walk up the stairs. Lib