My Leg, Hamstring?

I Was playing badminton and and i dived for a shot and my right leg swang around and i felt a sudden sharp pain and a jolt at the top of my lef near the groin and hamstrings, but i cannot pinpoint the pain. now when i walk i limp and when walking up hills or steps i am in a great deal of pain. and every now and then when leaning forward i experience a very sharp pain at the top of my leg which makes me jolt. but there is no bruising to see and i can bend my knee fine. so can this be a hamstring injury, and it does not feel like a join or bone pain.