I do have a desk job, and no previous injuries that I know of, but I did used to do gymnastics and things when I was a kid. The initial reason I went to the doc was for what I thought were muscle spasms- very intense (but infrequent) stabby pains in my left triceps area. They did an EMG, and told me I have some sort of peripheral neuropathy, (which could be caused by my sever B12 deficiency, as it's dymylineating?) and also some damage, they suspected, around my C7. I had the MRI and voila, C7 is cool, but everything else is messed up I guess.
The arm pain is not constant, but it is awful. When it happens all I can do is take muscle relaxers and try to rub icy hot all over it and pray it goes numb. I never know when it's going to happen, how severe it will be, or how long it's going to last.
All of this is very confusing, because I don't really know what is neuropathy and what is something else. This is all very new to me.