Thigh And Hip Pain More Condition_symptoms Left Hip/thigh Pain?

Left hip/thigh pain? - thigh and hip pain more condition_symptoms

My left hip has hurt for almost a week. The pain (like a muscle strain is) radiates to her knees and is worse when I walk. It is not unbearable, but I think I'm classified as "medium". I am 16 years old, have no chronic health problems (with the exception of some mild IBS), not a sport, and have no memory of prejudice in any way. What is possible?