Hi. Since I was a kid, whenever I would have a fever, it would always come with serious leg pain in my left leg and if would hurt so bad that I wouldn't be able to walk. As I grew older, I got used to them and having these fevers at least twice a year, but it started getting worse. These fevers started coming with pain in not only my left leg bug in my lower back too. I never thought about it before but why does this happen? Does anyone know anything about this? And would this be a sign that possible future diseases could be in store for me?

If it helps, I was born premature