The worst part is that when you go to the emergency room (which you should do, if it's a burst appendix you could be in big trouble, don't wait), they don't give you anything! My wife was in agony for hours before they saw her, immediately diagnosed the cyst, and gave her OxyContin. Unless they rupture, leak, or get too big, they're completely benign, and actually every time you ovulate a cyst is created. However, out-of-balance hormornes can cause them to grow.
Walt