Thanks for all the tips, help and links.
Friend couldnt make it to the doctor appointment. He was in too much pain.
He was taken to A&E. Cant write too much about his personal health, but hopefully they will sort out what is wrong with him now.
Sent friend the advice from on here.
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I spent a fortune on physiotherapy and sure enough, two years later, it was better!!
I've found some exercises on the internet and I'm taking painkillers etc and using voltarol. Does anyone have any other suggestions? And, is it likely to keep occurring? And, if so, can I do anything to prevent it? And, what causes it?
