Jupiter is not right

Jupiter is confused and refuses to walk. I'm worried. This has gone on for two days now. He got stuck in a corner yesterday and again today. He doesn't give me leg kisses in the morning while I make coffee. He doesn't get excited about food, but he does eat when I place the bowl next to him where ever he is laying down. If this keeps up we will call short out trip to the Grenadines and head up to St. Vincent where we can see a Vet. He shit all over the boat last night and pissed on his bed twice. He also missed the pee pee rug a couple of times yesterday. The bed and rug have been washed and are hanging to dry today.
He got stuck in the corner by the mast today and then plopped down to sleep. He hasn't moved in 6 hours.