G'day Nick,
I would be looking for a 2nd opinion if I were in your shoes assuming that you have been doing what your practitioner advised. 9 months seems like far too long to not have had resolution for that issue and either something was missed during your examination or there is another underlying cause. Can you pinpoint your pain? Is it in the front or back of your shoulder? If you can be a little more descriptive people may be a little more able to give some other explanations for your condition. Will look for your reply.
SPPAWA