Thanks for the reply. Yes I have had the pain in the elbow joint for many years. I only recently connected it with my guitar playing because I didn't get pain when I was playing. The pain was usually during the night. The difference recently is that the pain has spread into the surrounding bones and muscles.

I haven't played my guitar for maybe 10 days now. I have been pleasantly surprised to be getting some decent nights sleep.

So i'll keep taking the Ibuprofen and see how it goes. I've got some mobility back now. I can wash my face and hair normally which is a relief.

Ian