@Kai i think this may be what the issue is, thank you
Because of my pain and hypermobility, I ended up wearing the sacro illiac belt all the time and needed a cane in my last 2 ish months of pregnancy (mostly because of my hypermobility, my hips would shift and give out and I didnt want to risk falling)
Yes I have been experiencing this too, I can barely walk at times especially after getting up