I have noticed for a while now that when my two poms gets really excited they get what sounds like the dry heaves. Its not all the time just sometimes when we come in the door they are running all around and jumping on us. They dont do this at all while they are playing or running around just when they get really excited to see us. Does anyone else have this problem, do you think I should take them to the vet? I would have already but it just seems to be when we get in the door. It doesnt last too long but its starting to worry me. Any adivce would be appreciated.