hello welcome to hcm well from your symptoms and clinical history it is absolutely clear that you are suffering from a condition called as ACUTE ALCOHOLIC GASTRITIS....excess amount of alcohol at once leads to production and secretion of increase amount of acid in the stomach i.e hyperacidity along with increased peristaltic contractions of the smooth muscles of stomach which in turn leads to nausea / vomiting / diarrhoea....if i were your treating doctor i would have advised you the following treatment for 1 week -- (1) capsule pantaprazole once daily before breakfast (2) tablet ranitidine 2 times a day (3) syrup diovol-LA 4 teaspoons 3 times a day after meals hope you will find this information helpful and in future please avoid ingestion of large quantity of alcohol at once take care hcm