Increased salivation, nausea are symptoms of what disease?

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Question
Hello doctor. At 3 o'clock, I felt nauseous and had a lot of saliva in my mouth. After spitting out for 3 seconds, the oral cavity is full of saliva. The doctor asked me what was wrong with me. I hope you can give me some advice, thank you.
Anonymous question
Answer
Hello. According to your description, you may be suffering from gastroesophageal reflux syndrome. You should go to the hospital early for an accurate diagnosis and appropriate treatment. Hope you get well soon.
Thank you for your question to Vinmec Health System. Best regards.
MSc. Dr. Dang Tien Dat - Doctor of Odonto-Stomatology - Department of Medical Examination and Internal Medicine - Vinmec Ha Long International General Hospital.