<s>[INST] Hi , I was stretching in my dance class .. And we were doing like this stretch with our legs spread apart (like the splits) and wen I was reaching for my right foot , I heard a crack sound . I started to feel pain near the groin an upper thigh area. I was wondering if I popped it .. Or pulled something ? [/INST] Hi, In my opinion, you have pulled your hamstrings. I suggest pain killers, muscle relaxants and local heal. If no relief in 2-3 weeks then an orthopedic consultation is indicated. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Gopal Goel, Orthopaedic Surgeon </s>