I've been overweight most of my life and haven't eaten healthy, but all through out high school I did get lots of exercise. I played basketball almost everyday during lunch with fellow students. In 2002 was 6'2" and about 314lbs, while playing basketball one day, I turned my knee/leg sharply and it basically gave out/buckled and I fell quick without even knowing what happened. I had bad knee pain and could barely walk. I didn't go to the doctor and let it heal on it's own. About 2 days later, it seemed back to normal. Months later I injured the other knee the same way, same symptoms, same treatment... let it heal on it's own.
About 6 months later, while in college, I had lost a lot of weight and was down to 215 pounds at 6foot 3 inches and was in the Army ROTC, while bending backwards as if attempting to do a back bend, my right knee gave out once again. (I thought they were all better since I lost a lot of weight and added muscle). This time my knee was hurting bad for over a week, I went to the doc on campus and he suggest I go get an MRI cause he couldn't tell anything obvious. I didn't though for financial reasons.
Then about 2 years later I was out of college, driving a truck for a living and gaining tons of weight back. I was walking down a hill on a graveled road and I slipped, my knee cracked and popped and buckled, I injured it so bad that I couldn't walk on it for over 2 weeks, and once I was able to walk, I wasn't back to 100% for another 2 weeks. I took time off from work to heal. And during that injury, a hard ball of something formed in my knee. It is really hard, not soft at all, and I can move it around everywhere. If it goes behind my knee I can't bend my leg and my knee hurts. It bulges out through the skin and people watching it can see me move it around. It's sick and weird looking.
Then I injured my knee a couple more times just by walking and stepping down on uneven ground and 2 more of those balls appeared. It seems now, every time I twist my knee, one more pops up. I have 3 in all right now, all can be moved around and all in the right knee.
I know I should see a specialist and I know I should get healthy to help remedy the problem. I am getting healthier and as of writing this I have lost 74lbs and am self rehabilitating my knee with low weights and light exercise. I don't have a medical card and not a lot of money saved up for surgery (which I know I will need), so basically I was hoping someone could give me some insight on what my problem is so I can look up ways to help it myself the best I can... at least help me find out what those balls.