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Updated on September 23rd, 2025
Pet's info: Dog | Chihuahua | Male | neutered | 1 year and 5 months old
My chihuahua suddenly tucked his tail yesterday and started shaking and will not eat or drink.
3 Answers

Answered By Dr. Melanie, BVSc MS
Veterinarian
Published on September 8th, 2016
Answered By David Elbeze, DVM, MRCVS
Veterinarian
These are very general signs of disease, it mostly indicates that Zeus is probably in pain or in great discomfort, unfortunately almost any disease can manifest itself with those symptoms and for this reason I won't be able to give you an idea of what could be causing this.
I would recommend taking Zeus to the vet ASAP for a physical examination, if nothing obvious is found he will probably need a blood test or an ultrasound and the vet will then treat him according to the results.
11Pet Parents found this answer helpful
Answered By Jennifer Summerfield, DVM CPDT-KA
Veterinarian, Certified Dog Trainer
Poor Zeus! A tucked tail with shaking is usually a sign of pain. From your description, I'm suspicious that he may have back or neck pain - this is a fairly common issue in Chihuahuas, usually caused by a herniated disc although he could also have some other type of injury.
Less commonly, we may see symptoms like this with abdominal pain or even anal gland problems. I would recommend having Zeus examined by a vet as soon as you can - he/she can check his neck and back for any focal areas that seem painful, and may also do x-rays to help diagnose the problem. If it is a herniated disc, Zeus will need anti-inflammatories and pain medication, and will also need to be strictly rested for the next several days.
7Pet Parents found this answer helpful