home from work

Stayed home from work sick and feel bad about even thought im sick. Been at the company over a year and never calldd in sick. The boss was ok with it said get well soon, its my grandpa that will be upset. He was raised old school go to work no matter what. Hes going to come home tonight and ask why i didnt go to work, he is also sick with the same thing and been going to work so if he can do it why cant i, is what he will say