I should probably go to a doctor. That was the left side. The pain comes and goes at least once a month. It's never too intense and I don't always have it but it is a bit cyclical. But then there's a different more intense pain my right side. It stretches the side of the body. I don't know if its related, but I'm also been having more bowl movements and gas since the first onset of the left side pain. Other than that, I have no signs that anything is different. Periods are normal and I'm still a very physically active person.
It could be due to ovulation- even without ovarian cysts- if it continues, it's best to have a doctor take a look. They may want to do an exam, but will also need to gather a bit more medical history in order to determine what could be the cause.