Hi. Thanks for your query. Noted the history and understood the concerns. I can understand the situation one is when one is just 21 years old and have nightmares as well as stomach ulcers as seen on upper GI endoscopy. I would advise you the following in such a situation: Nightmares may be related to your young age, demanding in all the respects for the dream to come true, new atmosphere, objectives and subjective challenges. You have to consult your Doctor to have counselling and proper medications as may be needed.List up the things that give you stress and anxiety and to avoid or alter these. One does not loose anything by foregoing something. About the gastric ulcer at such a young age: Needs proper PPI therapy with things like Omeprazole. Antacids particularly when you are on empty stomach. Anxiolytics as would need a prescription. Soft bland diet and small frequent meals. Review by your Doctors regularly till you are cured of all the problems.