You can observe this for 1-2 days and see if the pain is decreasing with analgesics and hot compresses. Sudden stretching usually leads to stretching of the ligaments and muscles associated with the area and if stretched beyond their limits, a partial tear might occur leading to severe pain
. The main aim of treatment is to use analgesics, apply gel to the area and hot compresses. The main thing that needs to be followed is provision of rest: do not perform any exercises or stretches that injure the area further. If the pain goes on increasing after 1-2 days then you should consult a doctor.