I am so sorry to hear about your Ajani, I had the same problem with Ralph he is now 17 years old so don’t give up hope! He was at the vets for 5 days and
I had to put him on the hills prescription diet (I think it was cds or something like that) he was on it for about 4 yrs until I got laid off of work and had to put him back on purina indoor dry cat food, he has been on that now for 6 yrs and has not had any problems yet!
I hope everything works out for Ajani, but don’t give up hope!
Sending you some BIG HUGS!