THR Agonising Back Pain

I had my left hip replaced on 23 October. All was well at first, but just over a week ago I developed agonising lower back pain. I have never known pain like it, and have been given many different drugs to try. I’m now on Naproxen twice daily with Diazepam to try to stop the muscle spasms.

The doctor says it’s just my pelvis, back etc adjusting to a new posture after the operation, and I’ve had a brief session with the physio to discuss the way forward. I see her twice next week for acupuncture, massage etc. I’d expected pain from the new hip but don’t seem to have any and am walking well.

Nobody had warned me this may happen with my back, and it’s so unbelievably painful I wouldn’t have gone ahead with the operation if I’d known this would happen. I had no idea that back pain could ever be this bad.

Has anyone else had this? I think I’m worried that’s it’s not normal, and that the pain will never go away! Any advice or reassurance would be wonderful please.