Calling in well . . .
Call work and tell them that you are calling in well . . . tell them that you have been sick every day that you have been there and today you feel good and you don't want to waste it on going to work . . .
Hey, it's me . . . I am "Calling in well . . ." , I have been sick every day that I have worked there but I feel good today and I can't find a reason to mess it up by coming to work . . see you tomorrow . . .