<s>[INST] my doctor thinks I may have a hernia, i did have a c-section 2 years earlier. I found a small knot and thats what took me to the dr., although I have a lot of pain in that area as well mainly during my period which I think may be do to endometriosis in my scar tissue since it only really hurts during my cycle.  I am a big worrier, I have a ct scan scheduled for Wed.  Could it be ovarian cancer though without prior symptoms or anything coming back on pelvic and yearly exam? I am 37. [/INST] Good morning. First you should not be unnecessary worried thinking you have got ovarian cancer. Ovarian cancer is usually not detected in early stage. When it causes symptoms, it has already reached 3rd stage. The symptoms are heaviness in the abdomen distension of the abdomen, bloating sensation vague discomfort or pain.However, these symptoms may or may not be due to ovarian cancer and must not cause undue worry. Regards </s>