Hi, i had a fever the day after drinking, what does that mean?

Inflammation: Drinking can cause inflammation of your stomach and gastrointestinal tract which could potentially lead to a low grade fever. You can also get inflammation of the liver or alcoholic hepatitis if you drank a lot. However the fever might not be related directly to the alcohol. You might not want to take tylenol (acetaminophen) if you drank a lot as it can also adversely affect your liver.