Hi B12 is a common deficiency for the over 60 group and Vegans. Simple test. B12 deficiency . Side effects are lower red blood cell count and sometimes effect of immune system. I have 1000 unit injection monthly for over a decade. I wonder about the frozen shoulder if the levels are normal.

Hi got frozen shoulder at the beginning of summer 2015. I'm 100% recovered now after physical therapy and acupuncture. I was v. skeptical about the acupuncture, but now I'm a convert. They work in tandem. The acupuncture relieves the pain so that when you do the physical therapy you can get a fuller range of motion and really stretch yourself. It took time. After the first month I was able to lift my arm to wash my hair. After 3 months I was able to sleep on that side again (ahh!). After 6 months I could do everything except reach behind me to hook my bra. After 1 year I could unhook my bra. I can now hook it, though I feel muscle strain when I do.

Good luck, whatever you choose to do.