Irritable Bowel Syndrome (IBS) Support Group
Irritable bowel syndrome is a common intestinal disorder that is characterized by bloating, abdominal pain, diarrhea, cramping, and constipation. Typically no abnormalities appear during standard medical testing, and so irritable bowel syndrome is identified by the symptoms. Although irritable bowel syndrome can cause serious discomfort, the intestines are not harmed.
Then my pain increased, and I got more symptoms like: severe back pain, cramps, nausea, headache.
So, I mentioned it to my OB/GYN and it turned out I had cysts on my ovaries, and adenomyosis. I ended up having a hysterectomy (but I am older than you, 46).
I blame everything on IBS, which can be dangerous. My appendix almost burst because I figured it was just IBS. I suffered for weeks with Gallstones, because I thought it was just IBS. (Ended up having my appendix and gallbladder removed).
Helpful advice: Do not let the Doctors blame every symptom you have on IBS (either).
But, diarrhea with your period is common.
I do agree with above poster do not let doctors blame everything on your current condition. As they sure love doing that. One has to push if you do think its something more. I should take my own advise more..lol i tend to toss everything to what condition i have.