I'm having similar problems in my r. leg from a badly strained Gluteus Maximus insertion point (I managed to do it during lockdown and was offered a telephone physiotherapist!!!!). The whole knock-on effect down the leg and sciatic nerve is taking a long time to come right, but it's a lot better now that I am paying for sports massage.
I also have artificial hips and the r. one is now 20 yrs. old, so I suspect it is wearing-out and needs replacing, but there's a fat chance of that. So, I back Sqad in saying that it's my old friend/enemy, trapped nerve. :(