I have been suffering with re-occuring diarrhoea and pelvic pains along with acid reflux and irregular periods for the last couple of months. My doctor has started me on some tablets for the reflux and I am booked in to have an endoscopy done to check there is nothing going on bowel wise. I am worried though as I read that pelvic pain, irregular periods and diarrohea can be a sign of ovarian cancer. I had a abdominal ultrasound done twelve weeks ago and they checked both ovaries and found a small cyst on one. does this rule out cancer?