Posted 9/12/2017 7:22 AM (GMT -5)
I had SI joint issues for many years as a runner. When I contracted Lyme and Co's (Bartonella and Babesia), I had horrible piriformis and glute pain. It felt like someone had take a sledgehammer to my backside. Really painful.
I think, in my case, it was Lyme/co's finding one of my areas of weakness/prior injury, which I know they're good at doing.