I brought my 18 year-old cat to the vet because she was getting a little thin. She was otherwise just as affectionate, playful and voracious as she had always been. The vet diagnosed her with hyperthyroidism and prescribed 2.5mg of felimazole twice a day.
Approximately a month after starting this treatment, my cat's lower body suddenly became paralyzed and she now completely refuses to eat. I immediately went back to the vet. She said it had nothing to do with the treatment and recommended I euthanize or, if I refused, that I should continue the treatment supplemented with pain-killers.
The official sources I found for this treatment don't list paralysis as a side-effect although I did find pet-owners who had the same experience on related forums.
I first got my cat when I was only 10 and I care very deeply for her. I know she doesn't want to live in pain but I also know she doesn't want to die. She wants to play, chase after strings and climb on my shoulders. I want nothing more than for her to be healthy again.
Should I discontinue the treatment against the vet's recommendation? Is there any way for her to recover?