It sounds like you may have something similar to me. I've had that same sounding problem in my legs for more then 2 decades. I finally went to a very special natural doctor in St. Augustine, FL. He specializes in finding infections in people and killing them like nobody else. He's been doing this and researching this since 1980. His team also comprises scientists from NASA and the Goddard Space Institute. He found out I had MS. Multiple Sclerosis!!! I never dreamed I had such a thing. But he explained to me it would explain what was going on. It turned out to be a type of infection like anything else. It's gone now, because he uses LED light therapy that works to kill the infections whether they are fungal, bacterial, or viral. He found 52 infections in me the first time I went to see him!
His name I Jack Garvy. (notice the spelling). He's out of St. Augustine, FL and his website is: