Nobody from my job is answering!!! I don’t know if I should still go in!!!!!!!

I told my boss that my results said “not detected” for Covid 19. My boss told me if I am up for it but call my health care provider to make sure. I tried to call but they don’t open until 8am. I tried calling the front office of my job twice and they won’t answer. I tried calling my boss again but she won’t answer. I’m outside walking to the bus and I’m stressing. Nobody is answering!
I left the house and on my way to work because I don’t know what else to do!!!!!!!!!
I’m already late.