I has a grade I tear in the hamstring (singular) that did not heal correctly. As a result I had calcifications build up in the hamstring and tendon. I had surgery to repair and debride (remove calcifications) and have the tendon (proximal side) reattached with an anchor.

Your situation sounds a bit more extensive.

My situation likely involves other areas (like you yourself are experiencing). The hamstring became important to treat after I had a bursa injection. The injection corrected a "leg length discrepancy" but made the underlying issue more acute.

The human body has ways to adapt as best as possible - we don't completely understand why but it does.

Some days I feel like I am in the movie "The Money Pit" (Tom Hanks)! It is work in progress. Glad to say it is progress!
Best!