Do you have any muscle problems as well?
My muscles work well, but I am having a lot of pain from simple things, particularly in my shoulders, but other areas as well. For instance, and I am sure a lot of people can relate, I have to lay on my Tempur-pedic adjustable bed to brush my teeth. I put it in a position comfortable for my neck. I even use an electric toothbrush, but my arm and shoulder are so sore just holding up the toothbrush!!!