Hangover refers to the unpleasant symptoms that develop 4 to 6 hours after a person drinks too much alcohol.
Symptoms may include:
Nausea, vomiting, and stomach pain.
Headache, tiredness, and irritability.
Sweating and thirst.
Weakness and shaky hands.
A hangover is an indication of drinking too much alcohol. If a person has frequent hangovers, it could be a sign of an alcohol use problem.