So Hunter made it through the night - I stayed up with him and made sure he made it outside every 2 hours to relieve himself. We all got up around 10am and after breakfast, I watched and waited but Hunter actually managed to keep his food down - yay. He seems to be better today - drinking water and keeping food down, although still liquid poop.
Today for the rest of the day, we did chores, relaxed and watched movies. Not a bad weekend after the bad start with Hunter getting really sick.