Thanks for your query.
From the brief details provided, your problems can be due to:-
(thinning of the shoulder joint bones) : as such, you have Degenerative Joint Disease
. Adequate calcium + Vitamin D3 intake daily will help in the long run.
("frozen shoulder") due to spasm/inflammation of muscles around the shoulder joint. A course of muscle relaxants and anti-inflammatory pain killers along with passive exercise of the shoulder joint, will reduce your problems.
- Compression over the nerves emerging from cervical spine
, due to cervical fusion; or over the nerves passing below the shoulder joint. Regular intake of drugs for nerve-induced pains (such as, gabapentin
, pregabanyl, carbamezapine) will be helpful.
Consult your doctor who will determine the exact cause after examining you, and prescribe suitable drugs.
Hope I have answered your query.
Dr. Rakesh Karanwal