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Why is my senior Pom coughing, fainting, gaining weight, and drinking more?

Updated On September 23rd, 2025

Pet's info: Dog | Pomeranian | Female | spayed | 13 years and 10 months old | 15.4 lbs

We have a 13 + yr. old Pom that is coughing, sometimes passing out . Has gained a little weight, drinks more water and sometime vomits the water because she choked on it. Vet says she has allergies and have meds. for it. Vet says she shows a sign of thyroid possible . Heart and lungs are strong. She still runs and plays.

1 Answer

Most Helpful Answer

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Answered By Vanessa Yeager DVM MPH

Veterinarian

Published on June 15th, 2018

Hi and thanks for posting on Petco Pet Education Center, formerly Petcoach! If heart and lung issues have been ruled out with Chole's veterinarian, the coughing may be due to a collapsing trachea which can cause a goose honking cough and can cause syncope or fainting due to lack oxygen. This can be diagnosed with an exam and chest x-rays. Hypothyroidism (low thyroid hormone) is not uncommon in dogs and can cause increased water consumption as well weight gain. I would recommend running a full Thyroid panel (Total T4, Free T4, and Thyroid stimulating hormone ) to confirm the presence of a thyroid problem. If Chloe is hypothyroid, thyroid hormone replacement medication is typically given. I hope this helps and thanks again for posting!

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