Welcome to the boards,
If under any emergency don't hesitate to call for help. The mind can read pain in a whole different level, to a point that you think it is much worse than it really is. I'm glad you were able to schedule for a doctor in a pretty decent time. Do you think that some of these anti-depressents you have started on may be influencing these feelings towards you feeling physically bad and/or your upper abdominal pain?
Best wishs, we're here for you if you need anything.
You may even try posting in the Hypochondria (Health Anxiety) forum or hopping in the chat room for some quick answers.