Hi, I am sixteen years of age, female, about five feet two inches tall, and two hundred and eight pounds (I am working on losing some weight.) lately I have had serious pain in my hip, lower back, knee, and thigh. It hurts when I am sitting and when I start to walk, but fades as I walk. Hurts bad to run. Pain is at it s worse while I am sitting, but is constantly present. Keeps me from sleep. Should I be worried?