Yeah, I think the basics are adjust slowly to any change in position on the bike or training intensity, I’ve been enjoying a greater familiarity with the drop bars recently thanks to a bike fit and a saddle change, but going from an upright position to suddenly going everywhere on the drops has definitely upset my piriformis, or ischial bursa or something. Are you spending more time stretched out or even on the drops whilst on the turbo?
Whilst Pilates is good etc the internet will do your head in for solutions where actually the exercises ive been doing are nice and easy and quick
I was tempted to say similar, whatever is *actually* wrong with you, good money says they’ll have you doing some gluteus medius exercises (clams, side lying leg raises, resistance band squats or monster walks) and probably throw in some glute bridges for good measure!