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My old cat is up all night, vocal, hungry, and throwing up. Why?

Updated On September 23rd, 2025

My 18 year old cat, who we believe is deaf, sleeps all day and is up all night. He eats both dry and wet food but during the night he "screams" at me every hour on the hour to get up and feed him another TBS of wet food. He has also started throwing up more.

2 Answers

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on October 22nd, 2019

Sounds like he probably has an overactive thyroid - very common in older cats. I suggest you have him to your vet for an exam. This is not something you can correct at home. ( https://www.petcoach.co/article/hyperthyroidism-in-cats/ )

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Related Answers from Veterinarians

  • Published on October 15th, 2017

    These signs are quite commonly found in hyperthyroid cats. If levels are elevated (with mild elevation) they could be falsely decreased by an extra- thyroidal disease. This is a quite common finding and ideally free T4 (T4 is the fraction of thyroid hormone that usually is evaluated) levels together with total T4 should be measured. If you have any chance to do it, I would recommend to upload blood results as a picture on this platform so we can give you more specific answer; otherwise discuss with your veterinarian possibility to measure free T4. Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

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