Hi there,
We actually think that the compression is coming from the cervical spine and I have had dry needling to try to relax some of the muscles so that it doesn't compress as much. It seems to be working but it is rather painful but I guess it's the only option. We know that nerve pain can also be referred pain and that it could be coming from the RCs. I'm just terribly ticklish and can't handle the thought of someone dry needling subscap.
You're also right that I have rounded shoulders and my posture is not great. That is why I am focusing on stretching the pecs, and strengthening the scap stabilisers to try to bring me back into a position as close to as possible to neutral. Scap stabiliser work seems to actually make me feel better, I'm not sure why though. I know that my muscles are cold for most of the day even though it's in the middle of summer here and very warm. Doing exercises seems to help to get the blood flow back into the muscles and my pain doesn't increase either.
I also have a very tight thoracic and I normally release it on a foam roller at night. Do you think it's worthwhile doing this throughout the day and can you suggest some stretches to release the thoracic?
Many thanks for your advice