Hello there,
The common possibilities of your boyfriend’s
symptoms are food allergies, food
poisoning, GERD, migraine headaches, etc.Ulcers in the lining
of the stomach or small intestine also cause nausea and vomiting. A detailed history, clinical examination and diagnostic tests like CBC, Xray abdomen, endoscopy, and ultrasound scan may be performed. If you are not satisfied with your doctor’s opinion consult an experienced gastroenterologist.