then your doctor should have told you what to do about it. Your doctor should have told you to eat small frequent meals, eat a low fiber low fat diet, and prescribe a medication like reglan, erythromycin, domperidone, etc.
The anxiety can be helped with lifestyle changes, therapy, and medications. You should talk to your doctor about this.
The trouble breathing can be caused by many different things. You need to figure out why you are having trouble breathing. It is probably caused by your anxiety and you would need to work on the anxiety to help the breathing.