I'm a 19 year old female. For the past year I have been getting severe muscle spasms in my left thigh. And after some time I started getting knee pain, lower back pain , random pains in my rib cage and calves, neck pain.My joints crack whenever I move and hurt. It comes and goes and moves around. Everyone keeps thinking it's in my head, but I'm constantly popping painkillers because I don't know what else to do. I have headaches everyday and constantly feel like I have a fever. I get abdominal cramps at the drop of a hat, and I feel nauseous most of the time. I have swollen painless lymph nodes on my neck and I get recurring eye infections. I've been to so many doctors and no one knows what's wrong. Ive come here as a last resort in hope of finding some kind of answer. I'm 19 but I feel like 90. I used to be very athletic and exercised all the time. I still do, but the pain doesn't make we want to anymore. I've been given supplements, calcium supplements, vitamin supplements. Nothing has helped. I just feel worse with every day.