What Causes Pulsating Pain In The Abdomen With Lack Of Appetite And Diarrhea?

I’ve just saw my doctor about an on and off right side lower abdominal pain she has said to watch it carefully and it may be 1. Gas pain 2. Appendicitis 3. Ovarian torsion. The pain is more near my ovaries and is agitated after exercising and hurts so bad but goes away. The pain has more of a burning sensation or pulsating pain. It comes and goes. I have no fever. occasional nausea after my runs. I have bloating. I’ve never had period cramps and this dosent sound like it is. I’ve had dierreah and either I’m really hungry one day or like a lisant of appetite the next. please help!