Should i call off from work tonite?

i feel sicker than hell, my family is all sick, and i work the nite shift, so it's usually especially tiring....plus i have to go in for minor sugery on friday. should i take today off to try and get better?
Update: my throat is really sore, my nose is stuffed up, and i have a permanent headache...and i cant take almost anything for it due to the surgery soon.
Update 2: at my work, sick slips dont work for the first day of being off (wal-mart) so even if i got one, it wouldnt help.
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