Nervous about going to work with a cold

So like a month ago I posted on here talking about how my social anxiety gets bad when I'm sick....I have a cold again and I have to work most of this week, and I'm nervous about people noticing I sound stuffed up and things like that (do any of you feel self conscious about stuff like that or is it just me?). Does anyone have tips for making it as non-stressful as possible? I'm already nervous because even though I like my job, I'm always anxious that I'll mess up and my boss will get angry (even though she's sweet and understanding), and this just adds to it and makes me even more anxious about interacting with people.