Without an exam I cannot say in your particular case, but
fever is from inflammation or infection. Alcohol by itself doesn't do that. AND>.......
VOmiting, having it go to the lung and giving a
pneumonia can do that.
Vomitng so hard the stomach rips can do that
Alcohol irritating the
pancreas enough to break it can do that
Drinking so much you look like a homeless person and you don't have normal immunity to pneumonia,
sinus, or other infection and can't even get enough immunity to feel where the infection is... can happen....but people look very bad in that context (doubtful they are using a computer).
And.... people who drink heavily have car payments, spam e-mails in their in box, and occaisional colds like everyone else, too. Which are all really really commoner than everything else I mentioned.
Like I said, can't say in your particular case without examination and the other things are really bad (but have really bad other symptoms).