hi, Thanks for providing the brief history of you As you mentioned about the signs, i want to know if you had any particular injury or hurt yourself. Since you mentioned about the signs behind the thigh upto the ankles, it may be some disruption in the venous return, for which i will advice you to get once checked by the vascular specialist, also you may need to under go the doppler scan which can reveal if any blood clots are there. Usually, for active people though there are clots there might be no signs of pain, swelling, heaviness etc. as the muscles are in constant state of action. So i will recommend to get that check once. Post that, you can visit a physical therapist who can teach you exercises to help improve your signs. As exercise can help to gain much more benefits. Surgery is of choice if there is massive obstruction or there is too much swelling with constant pain, but if no massive obstruction or swelling then the surgery is not of the choice. You may be advised to take some medicines and along with it the physical therapy which will reduce the signs. feel free for more queries Regards Jay Indravadan Patel