Trigeminal Neuralgia or TMJ?

New to this site and just briefly scanned it.  Question? - Who in the group deals with TMJ, and anyone with Atypical Trigeminal Neuralgia?  I'm having the usual constant stabbing pain in side of face,teeth,tongue, but past month have had overall facial pain/weakness, difficulty swallowing, fatigue in facial muscles when chewing, and terrible soreness in facial and anterior neck muscles.  Have "slight" TMJ but dentist says not a major issue.  Can anyone help? - is this either TMJ or Trigeminal Neuralgia?  About ready to go to E.R. Oh, constant headaches until Dr. put me on Prednisone, a week ago.  Was reading about the morphine pump, - is it effective for facial pain syndromes?  I've been on same dose of M.S. Contin for five years.  Thanks so much... p.s. - been reading various articles on M.S. Could it be?

Carol