tingling is a fairly common symtom in
MS. I've had that for 2 1/2 years straight, and in
the beginning I also had slight numbness on the left side of gums and lips. These are paresthesias (abnormal sensations), as there is nothing structurally or functionally wrong.
falls into the same category, though it sounds a lot worse. You might get some relief from a medication for neuropathic pain
such as Neurontin or Lyrica.