My arm has felt weird for about a month now. Its like when I walk I cant dangle my left arm beside me when I walk. It doesnt hurt as much, it just feels uncomfortable. Its weird. And when I work out my arm feels weird when I am working on 2 machines. Could it be a pinched nerve?
It may be a pinched nerve or degenerative spine. I had the same problem but also had a back ache. I went to the dr and he said I had degenerative disc disease in the upper spine. My arm felt real weird, kinda weak. I got some medication that reduced the inflamation and helped alot. You may want to visit the doctor. Good luck!