So Moose (?) is starting to show his personality. He frequently pokes his cute little head out between the panels:
Today I fed him his vitamins (dynamite supplements are so good horses [and dogs] will eat it right out of your hands) and afterwards he had to clean his palette entirely:
Whatta cutie. :)
Vet calls me back tomorrow with hopefully a confirmed diagnosis. It came down to two choices, once it is narrowed we can know how to proceed. But Moose seems happy.