It could also be tendons or ligaments.

You are not alone. I have that. I also have Hypermobile Ehlers Danlos Syndrome though, along with a slew of many more painful conditions. I have yet to find anything to help and I have very good pain medicine :( I am bone on bone so I don't have tissue that can rebuild thanks to spinal enthesiopathy. I hope you find something that works but for me, it gets so bad on my ankles too that I just wanna chop my feet off!

This has been happening to me for 4 years!! I have arthritis in my left ankle...only one of many areas. But they discovered my left hip was higher than my right. I was told to get On a mat and lay on left side with arm over head. Also, I always sleep on my right side...they suggested I start using left side more often. It's been years since I could really tell if I had to empty my bladder other than an odd pain in gut...hip pain, pain down left thigh and into knee. Wondering if yours is muscular as well. It also set up my left side and raised that shoulder....lots of pain. They put me on Gabapentin for nerve pain, and an anti anxiety med as mild muscle relaxant. I'm getting there, but long way to go. Good luck!!!

I heard this procedure is done on a cash basis only. Idk check it out. The one I called about it told me what I just told you