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My dog acts strange, walks in circles, is aggressive. Should I worry?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 1 year and 8 months old | 30 lbs

My dog has been acting strange. She keeps walking in circles, has random bursts of aggression, acts paranoid, and all together different from her normal personality. Should I be worried?

1 Answer

Most Helpful Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on March 3rd, 2019

Hi there. Yes, this definitely sounds concerning. Sudden behavior changes are often due to an underlying medication problem - Wanda may be in pain or not feeling well, or may have ingested something toxic that is causing neurologic symptoms. I would recommend taking her to the vet for an exam right away. He/she can do blood work or other testing if needed to help diagnose the problem and get her started on appropriate treatment.

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