So i woke up sick...dad is back downhill

I woke up in the night with a fever and a horrible headache. Still not feeling at all well. I want to try and get out and go see Dad as from what i understand he's back downhill again today. He had a fever in the night too and hasn't woken up much today. I feel awful mom was up there all night and has been alone all that time. But i've got such a headache and nausea i just don't know if i can go out. I am praying this isn't the flu that it's just stress related or something. I can't be sick right now.