Looking for advice about illness

I work at a daycare, I have been super sick starting on Monday morning and so they had me take a covid test. The only thing I had then was a headache and a very sore throat.

My covid test came back negative, my strep test came back negative, and so did mono.

I sat in bed from like 4-6 crying because my head hurt so bad I couldn’t even take care of my kids, who were also both crying. I checked my temp and it’s 101.4.

I texted my bosses to let them know and they want time to still come in since the one covid test I took was negative. I swear I have never been this sick and they couldn’t care less because “there’s a lot of people off tomorrow”.

How can I approach this?