Mental health day/ Quarantine

I work in a drs office who believes we must work all the time no matter what. Unless you aren’t vaccinated and are sick . So my boyfriend is pretty sick right now. Started late Sunday afternoon as allergy symptoms then turned into low grade fever , sweats, congestion, cough. So he comes to get covid tested at my work on Tuesday (won’t know results til tomorrow) . Today I woke up just feeling blah & slight cough. Text my boss that and I’m told it’s ok to come on in- really not what I wanted to hear. I got covid tested while I was working today but still allowed to work. We are always short staffed and they won’t hire help. I am really debating calling out tomorrow- even if I don’t feel too bad. I am so mentally burnt out I think I need a mental health day? Am I wrong??

Plus my cough is getting worse and not sure if it’s in my head or not but my chest feels so heavy.