Advice?

I have had a really bad sinus infection for the past three days. I have a headache, earache, sore throat, stuffy nose, coughing, and neck ache. I have been waiting for it to go away and it doesn’t seem like it will. I’m thinking about going to my doctors or urgent care but I’m worried they will pull me out of work. I’m not worried about pay or anything because I have a ton of sick time. I’m worried because my boss basically forced me to work a double tonight and then I have another double tomorrow. What should I do?