Ask a Dog Vet and Get Answers to Your Dog Health Questions
I am sorry to hear you are worried about your dog. My name is Rebecca. I am a veterinarian and will do my best to help.
Is he eating? If he is eating, and not vomiting, it may not be his stomach. It could be back or neck pain; that can come on all of a sudden, without any accident or fall. He may have injured himself while you were gone.
If you check his gums, are they pink in color? Can you take his temperature with a thermometer?
If he is eating, and not vomiting, you could try baby aspirin. How much does he weigh? You can give 1 low dose or baby aspirin to a 15 to 20 pound dog, twice daily, with food. Stop if there is any vomiting. Do NOT give ibuprofen or Aleve or anything but aspirin.
Let me know what other questions you have.
How is your dog doing? Can I help with or answer anything else?