I do. I didn't get sick enough to stay home while I had my job, but there were a few times I went to school with a high fever because I felt bad about staying home, so I just didn't say anything to my parents about being sick until I was home. When I was in college, I had what I was absolutely certain was strep throat, but the person who saw me at the health center took my temperature, quickly glanced at my throat, and said it was probably viral before sending me on my way. I continued to go to class, even on the day my temperature shot up to 103 F overnight (and I went back in to the health center, and then they actually took me seriously - I'd been right all along). I went to class simply because at college, not going even if I was sick felt too much like skipping class, which in my mind was utterly inexcusable.
However, you certainly shouldn't feel guilty about staying home when you're sick - that's something I probably ought to work on. You recover faster if you give yourself some rest, and going to work while you're sick exposes everyone else to the disease as well. As magz mentioned, not giving yourself adequate rest and time to recover can make you even more sick.
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Yet in my new wildness and freedom I almost welcome the bitterness of alienage. For although nepenthe has calmed me, I know always that I am an outsider; a stranger in this century and among those who are still men.
-H. P. Lovecraft, "The Outsider"