It's 2am here and i'm due in work at 7am. I think I have a kidney infection. I could text my boss and he would probably get it (he lives on site) but i'm worried about ringing in the morning as he often sleeps through phone calls.
I work in a hotel and there will only be the breakfast chef there, so he could easily go upstairs and wake my boss (if he doesnt answer the phone) to get him to serve breakfast.
ETA: How often do you have sick days?