Being sick as a little kid isn't so bad because you have Mom around to feed you soup, press her hand on your forehead, and tuck you in for a nap. If she says you're too sick to go out, you're too sick to go out. As an adult, you're forced to gauge your own illness, which, as mother always said, means you're going to be sick for weeks. In this case, OP tried to do the right thing by calling in sick to work, but his unyielding boss wouldn't allow it.