What Causes Abdominal Pain, Vomiting And Loss Of Appetite?

A couple months ago I wouldn t eat even if I was hungry. I ate only because I didn t want to starve but it disgusted me when I did eat. I would continue to be hungry though when I would eat I would lose my appetite. Soon I went to the doctor because it got bad. I began to have tummy aches and I would throw up and have diarrhea at the same time. It would happen just about every hour. The doctors then told me it could be severe and I might have to be operated — I don t quite remember what it was they said I had but they weren t sure. It was an abdomindal pain. After that it calmed down. I get the same feeling. I eat but I almost seem to lose my appetite. Every time I lay down I become hungry even if I just ate. Should I have another doctors visit in case this could be where I would need to be operated?