workout injury , pull-up , chin-up , rotator cuff ?

[khc]

Recently, I have been doing some pull-up & chin-up, and I hurt my right upper arm. The pain is sharp pain, stinging pain, and not muscle sore (is not an area, is a line). It is deep inside the muscle layers at the back of deltoid muscle; below the deltoid muscle close to triceps. I feel like a tear and twitches at the tendon and bone. It is consist pain since January, never stops. A rest didn’t help.

I don’t feel any pain & stretching when I doing pull-up & chin-up, and I don't fell pain during the normal time; only doing some moves/motions I feel painful:
1. Push my belly in.
2. Push my back head toward front.
3. Reach to my left arm.
4. Circle my full arm (low back to up front).

Now my arm is weak and easy to get muscle sore and tired. My biceps and triceps are normal and healthy. Doctor says it is rotator cuff, but my shoulder is fine. What do you think?

Thanks for your comments.

Here is the picture.
http://www.flickr.com/photos/khyhchen1/4546032083/

[Heidi]

Hi
The pain possibly sounds like referred pain, maybe from the shoulder, even from the neck.
For this reason I would recommend you visit a physiotherapist of similar who can assess your problem and find out where it is really coming from.
It may be a nerve entrapment problem which would cause the pain to radiate down the arm and for it to feel sharp and non-muscular.
Good luck

[Darren_H]

Unfortunately family physicians are generally not well trained to assess and treat musculoskeletal injuries. They need to know a little about a lot rather than a lot about a little. It sounds like specific movements of the shoulder bring the pain on. Two of them seem to be internal rotation if I am interpreting things correctly. It could be one of the rotator cuff muscles called subscapularis that internally rotates the shoulder. However, it could also be referred pain from your c-spine (neck) or a number of other problems. Does it get worse with neck movements? Try bringing your chin to your chest, look over both shoulders, and look up at the ceiling. Do these movements reproduce your pain? Chances are you'll need a full assessment to determine the specific problem.