Since I was a teen, I have had to endure doubling-over, must-die-now pain during my menstrual cycle. When I was in High School, my doctor gave me a prescription. Those giant blue pills were a SAVIOR! I took them for YEARS. Now for some reason, I am having my periods about every 18 days. It sucks. Big-time. The pain has worsened, and it is more frequent, so I can't even plan anything around it. I went to my doctor, had a gazillion tests, and there is nothing showing that would give reason for what I am going through.