My dad is in the hospital and I’m exhausted from a Road Trip

I drove for a majority of a family road trip and was worked like a mule the whole time I was there. That I can deal with and move on from that for the good of everyone. My dad is sickly so it’s not unusual for us to be in the hospital this time of night. Problem being that I am exhausted and now I’m going to be delirious going to work today. I don’t want to call out but my body wants to do it. I was a shell of myself today at work so I figured a good night’s rest would cure me. With this hospital visit I’m going to be less than useful and I financially can’t afford to not go. Ughhh