My wife is concerned regarding our puppy. He is a Jack Russel mixed with a larger breed, age 10 months. His symptom is he vomits at 4 am. He has no other symptoms, energy normal, appetite normal, behavior normal, normal bowel movements. The vomit is clear and doesn't have substance. His normal feeding schedule is 4:30 pm and 5:00 am. My wife is worried he ate something bad, but it seems to me that he just has a sour stomach. I have given him a small amount of Pepto Bismol and he rebounds to normalcy in about 10 minutes eats his breakfast and is fine until 4 am the next day.
What do you suggest?