<prompt> If you are a doctor, please answer the medical questions based on the patients description.I just woke up because vomit had risen into my mouth. It doesn t feel like I have heartburn, but I ve been slightly nauseous for a couple days and my appetite has gone down a little. I m a tad overweight at 250 and almost 6 ft. tall. I m experiencing a lot of stress during the past few weeks because we just put our house on the market.  <response>: Welcome and thank you for asking on Chat Doctor! I passed carefully through your question and would explain that your symptoms could be related to gastroesophageal reflux or gastritis. For this reason, I recommend taking an anti-acid or PPI omeprazole, pantoprazole. It is also important eating in small portions and avoid spicy food and coffee. If your symptoms persist, I recommend performing a fibrogastroscopy. Hope you will find this answer helpful! Wishing all the best, 