I haven't been diagnosed with this yet but I'm pretty sure I have it. I tore my hamstring in 3 places in 2018 on my left hand side and ever since then, I've had trouble with my hips and knees. I had a steroid injection into my hip in 2019 and was trouble free for about a year.
however, we moved house recently plus my dog has a tendency to yank towards things like squirrels on the lead and I think the combination of the heavy lifting and pulling has put a huge amount of strain on my left lower back, unfortunately on the side that is the weakest
I've been doing the sciatica exercises online while I await the physio (the one that hurts the most is the reclining pigeon pose which I can only just about do). He thinks I have it (he commented before that I was starting to develop it) but I haven't managed to get a slot with him to have a look. He said whatever I do, I shouldn't let it get stiff and should keep as active as possible argh! The pain is terrible at night and when i'm sitting down.