It is my left hip - the bone itself isn't sore (this would be an unlikely place for a fx anyway, I'm sure it's not that) but rather what attaches to it - TFL, the left IT band always tends to be tight for me, and the other attachements to that bone are a bunch of core muscles.
I've run for the past 14 days; it has flared up the past 3. Ache is post-run; it does not bother me during.
If my plan of attack is (1) cut run volume and intensity and (2) strengthen core muscles, glutes (which control IT band action somewhat), (3) foam roll ... does this sound reasonable? I need a sounding board :P
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disclaimer: I am a PhD, not a medical doctor. The closest I get to surgery is topology.