It originates from d abdomen btwn d pectaralis major muscle n descends posterio-laterally from d pelvis to about mid-point of d inguinal ligament where it passes deep to d ligament n enters d femoral...
It is probably because you are ovulating (releasing an egg) which often causes sharp pains. However, if it is really painful (so painful that you can barely walk) you could have a cyst, which needs...