Good Morning and welcome. I am Dr. Loretta , a licensed veterinarian and am happy to answer your question.
I have a few questions to help me better assist you.
Has Doug been vaccinated?
Is he vomiting or having diarrhea?
Will Doug eat?
Could he have gotten into anything odd yesterday?
Sincerely, Dr. Loretta
Fast Doug for 12 hrs to allow the digestive tract to calm down and heal.
Give Doug Pepcid AC or Famotidine at 0.5 mg per pound every 8 hrs. That can be purchased over the counter at the pharmacy.
Give only small amounts of water during the fast or ice cubes
After the fast, feed rice and boiled chicken (2/1)
If he is feeling better, then wean him back to his diet. If Doug is still not feeling well, have your vet examine him to be sure we have not missed something such as worm load or intestinal obstruction.
Does that make sense to you, Katie?
Please let me know if you have ANY other questions. My goal is to give you 100% satisfaction and if you are not yet satisfied, please Reply so I can clarify for you