I am 22 years old and I was diagnosed with PCOS when I was 14 I have had mutilple problems since then. I take birth control on a regular basis so as to have a regular period. Normally I don't really have a rough time cramps wise I do have them but they never really go above a 6 on the pain scale. Less than a week ago I started my period and my cramps were worse than usual. I spent many days at home cuddled up with a heating pad and a bottle of Midol. Since then my bleeding has stopped but the cramps have not. Usually my pain is only located on my right side, but for the past week it has been all acrossed my abdomen. I am not sexually active and yet the last time this happened I was diagnosed with a Uterin Infection. I don't know how I got it but it took two bouts of antibiotics to kick it. I can't even bend over without the cramps getting worse. I need some ideas as to what it could be.
You should consult your Doctor for an examination. Ultrasound scan will help make the diagnosis. Severe cramping pain can be due to appendicitis, colitis, torsion of ovarian cyst or rupture of cyst etc.
Hope this helps. Take care and good luck.