Our little Jessie came back from the 'spa' - the kennel - in good spirits, but a day later, she was obviously ill - throwing up with diarrhea too. We waited a day to see if it'd pass, but it didn't (the office rug is ruined though) and to the vets we went. Her blood work was fine. Exam seemed okay too. Antibiotics and special diet have helped one end, but not the other. This morning she seemed more normal in terms of energy but is (since) obviously agitated with the heebie jeebies. I can't figure out why.
After almost 10 years with an animal you get to sense their moods and there's a silent communication.
I hear some marriages have that too.