I do take several vitamin supplements, calcium in several forms, magnesium, zinc, D3, biotin, etc. I've been sent to physical therapy at least 3 times over the 10 years of this problem. Usually after 5-10 minutes into session, I'm walking around 25 minutes in agony from a simple exercise like leg lifts or squeezing a ball between my thighs. If I do 3 or 4 squats...the session is over for sure. I've had myofacial massage on the thighs, groin, hip areas and same results after a few minutes. The only exercise I can do is 2 or 3 days of senior aqua classes. If I turn my foot inward to put a rubber band around the ankles for aqua walking, it immediastely triggers charley horses in thighs. The left is far worse than the right even though that prosthesis is 12 years old and minimally invasive. The right hip prosthesis is 21 years old and the incision is about 12" because the bone was necrotized when they got in there and they had to use a very long shaft. The fact the left thigh is the major problem, leads me to think its an iliopsoas impingement, after ruling out other possibles after 10 years of various doctors and testing. Waiting on appointment with hip specialist to pursue that possibility.