He also hasn't been eating much today, and he is a little lethargic. Not completely lethargic (he did respond to the sound of his favorite toy and played a little bit) but he's definitaly not his usual self.
Any idea what might be wrong?
Is it just a cold? (my other cat has been sneezing a little bit... I just got her from the shelter so she might have caught a cold while she was there and Joshua could have caught it from her...)
Would I be safe to wait a day or two to see if it gets better? Or should I call the vet right away?