Thank you.I wouldn't try to feed him anymore until at least late today or tomorrow. While it's possible that it could be an obstruction, it's pretty unlikely with the history you described. Give him a bit more time with no food. Vet for sure tomorrow if he's not on the mend.
He is sleeping on his back with all fours in the air right now, so he's feeling better, I think. I normally don't see sick dogs or dogs in distress sleeping like that.
I appreciate your answers....thank you!!!!