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Why is my playful dog suddenly lethargic and breathing heavily?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | unspayed | 4 months and 6 days old | 8 lbs

My dog is always playful. Today she hardly wants to be outside,heavy breathing,laying around not active. She's a shorkie and is always full of energy. Is something wrong? She drinks plenty of water,not too hot outside either.

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on April 22nd, 2017

Oh no, that's not good that Bella has had a sudden change in behavior. This can signify a medical problem, and the heaving breathing can be due to pain. She could have injured herself leading to her lethargy. I would monitor her tonight and if she is still acting this way in the morning, I would have her seen by a vet for a health check.

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