Bummer, we both got it. Well Piriformis and everything else on my left hip is my enemy. I didnt get the full blown nerve pinching sciatica this time - very close though. I probably (like 10% of the pop) have the sciatic nerve going through the Periformis, you might too. So any extended uneven tension of the other leg muscles can temporarily put tension on the piriformis pinching the nerve. Exercising out of shape muscles to quick can do this. if one has this issue.
I've been unwinding my left side (hips/upper thigh and psoas) for a while now. So they were kind of unstable. Then I tried to jog a short distance a few weeks ago and I think thats what did it. It was too early to jog even one block. So now I cant bike either. Life is short, I hate going slow.
Active release practitioners are the best for hip tendon/muscle issues. They can at least release the adjacent muscles that are being inflamed from overworking from the injured piriformis. They will know what the issues are. Drs will not.
www.activerelease.com/find-a-provider.asp?strGeocode=%2843.8041334%2C+-120.55420119999997%29&strAddress=Oregon%2C+USATheres nothing hoky about
it.
Your bike- As a long time bicyclist, I can tell you the right seat and its position for your riding style is everything! Skinny seats are for high ride height (legs less than 90 deg at top stroke), and wide soft comfy seats are for low height position (legs 90 deg).
The difference is the seat up high between your legs (road bike) vs sitting on top (comfy cruiser style). You jack up a wide seat high and it rubs all the inner muscles and tendons causing issues. You lower a skinny seat and your "sit" bones hurt. The seat angle is huge too. 1/4 in makes a difference.