<s>[INST] I have upper arm pain & very limited movement in my left arm. started about 3-4 months ago & thought it was a strain as this is what it felt like , now it has progressed to me having limited movement, I am wondering if you can tell me what this would be & how I can mange it. [/INST] This is symptoms of axillary or brachial plexus stenosis or cervical disc stenosis or inflammation. First, cervical x ray, nerve conduction test and CBC and fasting blood sugar should be done. Taking of vitamin B12 injection once every 3 days is effective now. </s>