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Why is my dog suddenly anxious, panting, and trembling without cause?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Female | spayed | 10 years and 9 months old | 14 lbs

Good morning. I need some help please! My shitzu Lily has always been super sensitive to sounds, noises, thunder storms, etc. But it's Sunny out today and there is nothing stressful going on in the house. But Lily has been so incredibly anxious lately, and I have no idea why. She is so anxious this morning that she's panting and trembling and trying to hide like there is a thunderstorm or something. And like I said, there are no stressors in the house whatsoever. Please, I need some advice!

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on July 21st, 2019

Since this is a behavior without appropriate context (like thunderstorms), I would recommend having Lily examined by a vet. These types of behaviors can be similar to pain responses, difficulty breathing, heart arrhythmia, pre-seizure activity, etc. The vet will do a thorough exam and discuss Lily's relevant medical history to determine if additional diagnostics are necessary.

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