Smarter than the average bear
We did the backtracking of what he could have potentially eaten. Nothing comes to mind. That doesn't mean he didn't find some toxic morsel on 1 of his walks.Recovering back so quick, sounds like he may have eaten something they gave him trouble. Is it possible he may have gotten into some thing in the household, or something in the yard? In either event glad he’s doing better.
His food intake is being closely monitored now.