Multiple Sclerosis caused by tramatic injury?

Recently my Neurological symptoms have become worse. My Neurosurgeon and Neurologist have been evaluating my symptoms and MS keeps coming up in their conversations. I know nothing about MS and I am undergoing tests (right now) for the disease. They say the symptoms are different for everyone, diagnosing MS is difficult and can mimic many other diseases. I am in extreme pain, have balance issues, extremely senseative to air hitting my leg, water running from the shower, temperature changes. I have tremors and spasms, nightmares and can not sleep most nights without waking up jerking and twitching in a horrible sweat and I have never had headaches before, now they are just another problem I have to deal with, my eyesight sucks, my life sucks. Pain meds do not help (have tried them all). I thought you had to be born with this disease. Neurologists tell me that it can develop at any age and can develop from a severe injury. Does any of this sound familiar to anyone with MS? I have had thoughts of suicide as I can not live in such pain. I am embarassed, ashame and isolate myself from everything and everyone. This is no way to live. I could care less what they determine is the cause, however it is ruining my life not knowing what the hell is going on. I guess doctors don't always have the answers to everything. I feel like a lab animal with all the tests and a sense that I have lost my mind.