The worst of the pain is in my groin. It is especially painful when lifting my leg and moving it inwards. For instance I have to lift my leg into the driving seat of my car as it is too painful to just lift it normally. No clicking. Just pain.
Various tests and scans have been done, including an aspiration - all of which concluded that there is no infection.
I realise that there can sometimes be confusion with pain emanating from the spine. I have had a microdiscectomy in the last year for a prolapsed L 4/5 disc which cured the back and leg pain, tingling etc. (and meant I could walk again!) But the back problem very much post-dates the onset of the groin pain, which started immediately after the hip surgery.
No-one seems to know what is going on, and it is very frustrating, but I feel quite reluctant to do anything that might introduce infection where there is none and make the situation worse. Especially as I live in a village with no public transport and really need to be able to drive.
The only thing I have gained from the hip surgery is the fact that it no longer locks in place as it used to.
Thank you for all the helpful suggestions. I do appreciate them.