Leg soreness undiagnosed

[Jmc2835]

I am a 31 year old male that has been experiencing bilateral leg pain for about a year. Pain is mainly in thighs and calves. No weakness really, and no numbness. Feels like I did a ton of lunges or other leg activity after minor workouts. Almost burning feeling sometimes. They have felt kind of jelly like a couple times after exercise but not a usual thing. Some spasms... Usually okay if not walking or standing for an extended period of time, but will start to ache when doing so. Hot baths seem to help best. I also have this consistent need to want to stretch.
Pain initially started the same day that I had a stomach bug. Not sure if it is a coincidence. I didn't really have a fever and the bug only lasted a day...
The only connection I have found was experiencing some rhabdo (high CK levels) 2 years ago after a very vigorous exercise session. I peed brown and went to the doctor. Took Advil and Tylenol. Pain was experienced in same parts of legs (thighs, calves) and I could hardly walk for a week. Very very painful. After that, I appeared to be fine (up until now).
It seems extremely coincidental that a year after the injury the same places in the leg feel sore. But it's just not going away! But the doctors don't seem to think there is a connection? I don't know...
Got EMG , blood tests, biopsy on thigh. Have seen 2 specialists (rhum and neur musc)... All results were normal.

[Paxiled]

I have this problem, but for me it seems to have originated with hip pain so it's probably radiating down.