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Why did my dog throw up during a thunderstorm? Is it anxiety?

Updated On September 23rd, 2025

Pet's info: Dog | English Springer Spaniel | Male | neutered | 2 years and 5 months old | 50 lbs

after 5 hours of sleeping mex woke up at 5 am and threw up. i usually feed him at 7 so i don’t know if it was the food but is it possible that he threw up because he’s afraid of thunder ? it never happened before but he threw up right after lightning started again

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on January 19th, 2019

Poor Max! The fear may have caused him to vomit, but it could also be a GI illness, he may have eaten something rotten, has a foreign body, or pancreatitis. I can give you a home remedy to see if that helps. Withhold food for 12-24 hours, then feed a bland diet of boiled white meat chicken (no bones) and white rice in small amounts several times a day for a couple of days. Then slowly add back in his normal diet. If the vomiting continues in the absence of food, he vomits the bland diet, develops diarrhea, stops drinking water, starts vomiting water, or becomes very lethargic, he will need to see a vet right away. Best of luck.

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