You should go to the doctor as soon as you can. Especially with your other symptoms, this could be a sign of appendicitis. Even if you don't have a fever, you should still get it checked. Don't let yourself be dismissed and sent home telling you "you're fine" when you know very well that something is wrong.

Call your own doctor and see if you can get in as soon as possible. If your doctor wants you to go to the hospital, going on your doctors recommendation makes them take you more seriously than if you go in by yourself. Either way, this needs to get checked out sooner, rather than later.