Why do I get nausea days after drinking?

A hangover's nausea should fade within a day. Nausea that persists for two or more days after drinking has usually graduated to something else, and the leading suspect is alcoholic gastritis: alcohol inflames the stomach lining directly, and a heavy session can leave it raw and acid-battered for days - gnawing upper-belly discomfort, nausea especially on an empty stomach, poor appetite, sometimes vomiting. Dehydration and electrolyte disruption stretch the misery, and if you are a regular heavy drinker, morning nausea can also be early withdrawal, which is its own conversation. Managing the days-after phase: small bland meals, steady fluids with electrolytes, no caffeine on an empty stomach, and strictly no more alcohol while the lining heals - hair of the dog is exactly wrong here. An antacid from the pharmacy can calm the acid component. Most gastritis from a single session settles within a few days of this care. The flags: vomiting blood or material that looks like coffee grounds, black tarry stools - both bleeding signs - severe or worsening belly pain, nausea that keeps you from holding fluids down past 24 hours, or symptoms still rolling after a week. Those go to a provider, and the bleeding signs to urgent care. Recurring days-long nausea after drinking is also the pattern worth discussing honestly - it is your stomach filing a complaint about the dose. Pymander is a free AI doctor, 24/7 by text. Describe the timeline and symptoms, and it can help you judge the next step.