What is it about driving? The fortunate part of my day is that my small business has the work, the bad news is that creates alot of driving. More frequenctly while I am driving I will get the pain, like a nail is in my shoulder and it burns, shoots down my arm to the point that that arm doesn't feel like I could use it. It "falls" to my lap. More often on the left than the right. Some times these zingers can last a few minutes others can last until well after I have gotten out of the car.
So what is it, the combination of arm positioning, the attempts a make to turn my head to see traffic - but I do have to admit, I am now groaning a little when I know I will have alot of driving to do that day.