Hi, over the last week or so, i have had sudden sharp pains that come intermittently on my right side at the crease between the thigh and groin....yesterday was worse with about 12 episodes, about 15 seconds in duration, some not more than 10 mins apart, others several hours later. Today, it has happened several more times. The pain is pretty sharp...I hold my breath and try to push through the pain. What possible things could cause this.? I have no other pain or injury that hurts int hat area after the sharp pain passes after 15 seconds. Thank you.