Funny, but I remember a few threads in the last couple of Weeks about puppies vomiting during the night but otherqise being fine. Digger had a belt of vomiting in the wee hours in his crate last night. I remembered that some had said it seemed to be because their tummies were empty. I got him up and took him for a drink of water, and he didn't throw up again.
It got me thinking though, and I reckon it could also be due to hormonal changes. The only times in my life that I've vomited without actually being sick was a few days prior to 'becoming a lady' and from the hormonal changes during pregnancy.
Just wondered what you guys think of my theory.
He is a box of excited fluffy ducks today, but have noticed his behaviour changing slightly over last week or so, he seems to be going into a rebelious stage, so thats another factor that made me think a hormonal surge may be the answer to the vomiting.