[Help] Our dog has been acting differently since we returned from vacation.

I'm on mobile, so the format may be a little wonky. This may be a bit lengthy, but I'll start with some basic info: My wife and I have a 13 month old male Shih Tzu/Lhasa Apso mix named Beau. Beau is neutered, but has always been a playful pup.My wife and I are newlyweds, and while on our honeymoon, Beau stayed with my parents. They absolutely adore him, so I knew he would have a fun time without us for a week.Since we picked him up, he hasn't been as hyper as he was prior to us leaving. He seems to be very sleepy and is super cuddly/clingy now. While he still wants to play with his toys, it's not as much as before.He still eats, but it takes him longer, and he has thrown up his food once since we returned.My parents did find two ticks on him when they gave him a bath during the honeymoon; I don't know if that matters a great deal, but I didn't want to leave anything out.We called the vet and he has an appointment tomorrow, but I wanted to see what Reddit had to say about the situation. via /r/dogs http://ift.tt/2rZIbqS