Thank you so much for your help- so sorry I took so long to reply, am in so much pain, am struggling to cope, and especially typing is very uncomfortable.
Yes, I had an X ray of shoulder (normal), but already knew I had fused neck vertebrae C6and C6, which were diagnosed 15 years ago - but never caused pain before so I don’t know if that’s the issue.
I am doing neck exercises given by massage/physio therapist, and having weekly treatments of trigger point massage alternated with acupuncture.
The only drugs I’m taking are CMD Núcleo Forte which is highly recommended for actually treating (rather than relieving) arthritic pain, and codeine/paracetamol when pain becomes unbearable.
It eases for a day or two every few days, then back with a vengeance. No particular trigger, I don’t know what sets it off.
Today I went to see grandchildren in a parade. I walked about 200m and have been in terrible pain since. Am in bed almost immobilised now, have taken codeine and will see if they help together with a test.
Thank you again for your help and I hope you get your problems sorted out:relieved soon.