13yr old dtr with abd pain for 2wks. no n/v/d, fever or const. what else should i consider?has appetite, but doesn't want to eat due to pain.gastritis?

Abdominal pain: Abdominal pain is a very common complaint among children of all ages. Gastritis can cause abdominal pain. If she is feeling acid come up, having vomit tasting burps then acid reflux is a potential. There are many more questions to ask about the pain and timing of the pain to figure out the proper treatment. Also make sure that there aren't stressors that could be contributing to her pain.