Since my appointment isn't until Friday, I've been busy with Dr. Google to self-diagnose. I'm thinking maybe Piriformis problems. But "Dead Butt Syndrome" or
Gluteus Medius Tendinopathy seems to fit better for my symptoms. Plus, this quote stuck with me:
This is so me. On a typical non-running day, I'm lucky to get 3K steps in. Running days, I get 13K+ (about 1,600 steps per mile). Were it not for running, I'm still incredibly sedentary.
It sounds like an MRI can't confirm this diagnosis, but can rule out others. Willing to get a private one, if my insurance doesn't cover...