Maybe it's my imagination?

hey guys! well im still having trouble & it seems to have gotten worse now. I can't sleep because I can't sleep on my back & I tried to sleep on my side & it felt like a huge knot! i dont know if my thigh muscle is swollen or what? But its startin to hurt from the middle of my knee to the top of my thigh! I did like someone said & took a hot bath but it hasn't help . . any advise?