I too know of a man who was diagnosed with MS after a car accident. Just by chance. They ran an MRI to check for damage from the accident itself, and lo and behold, MS type lesions. It explained a lot of mild neurological symptoms he'd previously passed off (he's since developed more, unfortunately).

With that said, an accident or a very stressful period can be the catalyst for MS to come to the fore-front for sure, or to result in an inflammatory period during which symptoms are more pronounced, or show up new.

I wish you luck in your search for answers. It may or may not be MS when all's said and done, but regardless of what they find, I do hope you receive some relief from your symptoms (as a fellow Trigeminal Neuralgia sufferer, I feel your pain, literally ) in the near future. Stay in touch with updates and come here if you need help getting through the limbo period.

Edit: I notice you're in Edmonton, AB. I tried taking Gabapentin for my T.Neuralgia, found it did nothing. If you'd like to send me a private message, I'll tell you all the fun stuff I've tried, and what's worked/what are my known triggers. You may want to check out the Trigeminal Neuralgia forum apart from the MS forum on NeuroTalk as well, if you didn't find it already!