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Why is my 3-month-old puppy having seizures, vomiting, and aggression?

Updated On September 23rd, 2025

Pet's info: Dog | Pomeranian | Female | unspayed | 3 months and 1 day old | 2.205 lbs

Hello I hv a female mini spitz 3 months old 4 to 5 days now she is having seiZures First she vomited 2ce then she falls and shakes all her limbs maybe one side more and her nexk too and involuntary blink of one eye Seizures happen up to 10 times a day especially when im feeding or shes going to sleep Lately she has lost coordination falls down or has a sfiff limb Eats drinks urinates poops normally she's become more aggressive This happened after 2nd vaccIne on the neck, please help

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2 Answers

Most Helpful Answer

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Answered By Lauren Kennedy, DVM

Veterinarian

Published on July 7th, 2017

I would be very concerned with Izzy having this many seizures in such a short period of time. Young, small breed dogs can suffer from a condition called a shunt. With this disease the liver is unable to filter out toxins like it normally would. When this happens and the levels of certain enzymes get too high they affect the brain and cause seizures. This happens more frequently after a meal. I would recommend having Izzy checked out by your vet. They will likely run a blood test to check her liver enzymes and a test called bile acids to see how well the liver is working. I'm sorry you are having to deal with this in your young pup! Hopefully you can get a diagnosis and start managing her seizures soon.

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    Answered By Dr Stafford, BVetMed, MRCVS

    Veterinarian

    Published on

    Seizures this regular are a medical emergency. In such a young dog hey could be indicative of an organ issue that has been present from birth such as a liver shunt. It could also be early onset epilepsy. The vaccine may have triggered something but could just be a coincidence. I would take izzy to the vet asap to have this investigated and treated.

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