I'll be exploring this topic further with my Sports Doc next Monday, but I was suffering with the same 'Sports Hernia' type symptoms in varying degrees from June thru August. During the same period I started to develop 'Piriformis Syndrome' pains, as well. My theory is that I may have altered my running form in response to the S.H. stuff and possibly may have caused the P.S. symptoms to develop.
Cal I think there maybe is some type of correlation between the PS and the SH. A few weeks before SGM I also started having the hip/glute problems consistent with PS pains. I was first thinking is was just my high-hamstring tendonitis acting up but then I was noticing this was a little different than that pain, a bit more toward the outside of the glute.
Glad you can sneeze now without trauma. I don't dare try it yet but I suppose sooner or later a sneeze is going to sneak up on me before I can supress it. Hope that prednisone will help me out.