First off, I’m so sorry that sweet Truffle is doing so poorly.
Knowing when it’s the right time for euthanasia is hard, no matter how many times you’ve been in the position to make that decision. I recently had to for my boy; he was very sick with a double inner ear infection/calcified bullae for over a month which ultimately didn’t respond to antibiotics. At some point, round the clock supportive care was all that was keeping him alive, and even then, he wasn’t really living. He was lethargic, couldn’t stand up, was constantly caked in his own feces/urine because he couldn’t groom, was very painful (constantly grinding his teeth), and was no longer the wheeking happy boy I knew. His quality of life had dropped off, and there was nothing more we could do. It was agonizing, but we made the decision to let him peacefully pass on.
I’m a vet tech by trade, and am planning to go on to vet school within the next couple of years, so here’s my more professional advice when it comes to assessing quality of life using a scale that we use in the field:
1. Hurt- Is he in pain? Can the pain be managed by medication, or is it uncontrollable even with meds?
2. Hunger- can he eat at all by himself? Does he need to be entirely hand fed, and if so, can he tolerate feedings?
3. Hydration- is he drinking/getting fluids?
4. Hygiene- can he groom himself? Does he have any pressure sores/urine scald from sitting in one place/in his own urine?
5. Happiness- is he acting like his normal self? Does he still have happy times (popcorns, happy cuddles with pals, excited moments)?
6. Mobility- is he able to move around?
7. More days than bad- this one is tricky with small pets, like piggies. My pig vet says when a pig is in critical condition, it’s more like assessing “is he having a good 12 hours” than full days, because they can decline so quickly. But is he, overall, having more good stretches than bad ones?
Ultimately, the decision’s up to you, but taking a step back and using my own professional skill/these criteria has helped me immensely when I’ve had to think about when it’s time to seriously consider euthanasia.
Here is a link to a comprehensive questionnaire from the Ohio State University that can also aid in assessing quality of life:
https://vet.osu.edu/vmc/sites/defau...ionAnimals/HonoringtheBond/HowDoIKnowWhen.pdf
Lastly, it’s worth thinking of yourself. How long can you feasibly keep up this level of care with no improvement? It won’t make you a bad person to take your own wellbeing into consideration, I promise. It’s genuinely something to keep in mind as well.
I know this is a lot to digest, and I’m so sorry you’re having to deal with this.
If you have any questions, I’d be happy to answer them. Take good care.