I was very busy yesterday and did not have much time to observe my bunny. Before I left the house (at around 4:00) I filled his hay rack, replaced his water and then left. I returned a little past midnight (8 hours difference) and I did my nightly routine of scattering pellets around his area for him to eat. It is now 9:30am the morning after, and he has not touched his hay and ate maybe one or two pellets which is extremely strange because he usually goes crazy when I feed him his pellets. He is not walking around or sitting in his usual spot and will only hop slowly from point A to point B and just sits there with his eyes wide open. He is pooping occasionally, but they are perfectly formed (if anything they are slightly on the hard side).
A combination of not eating and barely moving and not seeming relaxed.. any ideas as of whats wrong with my bunny? I’m very worried 
Update: He will only eat lettuce and will only drink water if I put the bottle infront of his face. He will not eat his favourite treats, pellets or hay.