I am worried if i have a medical problem. Last year i was joggling many sports at once; i was doing tennis, gymnastics and swim. I never had any sort of physical weaknesses until last year, out of no where my left knee felt as if it popped out (i don't know if it really did) when i tried to get up during class. The next day, my right knee also felt as though it had popped out and i had a hard time walking. I had to quit all the sports i was involved with even swim, because my shoulders would crack and my knees could not really move easily. I went to two different doctors and tried to find out what is wrong with me but they told me that i would be fine and that i just needed to ice, stretch and rest my legs. Three month past and my knees got worse and since i did gymnastics before i also had really weak ankles (i landed my back tucks wrong many times) and since i was using crutches to get from class to class, i started to have wrist and elbow problems. I really think i have some sort of joint problem, but the doctors don't really want to check (i don't have money or insurance) and my bones keep popping at times. Many month have passed but my joints and knees along with my ankles and wrists are very weak (its hard for me to hold my textbooks without my wrists popping or hurting). I also have back problems because i kept slouching when i was using my crutches and somehow, my back isn't getting better (by the way i stretch all the time and drink milk). Thank you for reading this and please help me, I can't go to a doctor but do you have any advice on what else i should do?