Originally Posted by tennis forlife
Sorry. I meant palm-down. If I have my arm at my side and lift straight out slowly, at about 2" there is a pretty sharp pain, in addition to a constant sort of low pain. HELP!
2 inches or 2 feet as in your first reply?
If your palms are down and you get pain when you raise your arm one common possibility
is impingement. Rotating the shoulder internally - upper arm bone rotates around it axis - as you are doing and raising the arm causes less clearance under the acromion because a bony attachment on the upper arm squeezes shoulder structures such as the supraspinatus tendon.
Search TW for recent threads and especially see the Ellenbecker video on shoulder anatomy and impingement.
See a Dr for a diagnosis. I believe, but do not know, that the shoulder can experience impingement damage without much early pain.