well i'm not lying. and you have absolutely no right telling me that i shouldn't be allowed to have any animals. whatever. you seem to be f**ked in the head anyway. and you know what? crazier stuff has happened anyways. i've been through hell and back and i'm not gonna just let you say crap like that. and yeah that vet was messed in the head just like you seem to be.
Why don't we get away from the name calling and get back to the original question -- "What should I do?" Well, you have a number of people suggesting that you put the cat down due to his ongoing health issues. Have you considered that as an option? Why or why not?
Well, if you think he's "happy" then you keep doing what you've been doing. I have to admit that I'm kind of confused as to why you started this post ("What should I do?"), because it doesn't seem like you want anyone to tell you what to do. Did you mean to say, "Is anyone going through the same thing as me?" Because there are plenty of people who can relate to medical issues.
BTW -- Making the choice to put an animal down is a grave responsibility. Make sure that you are not prolonging your pet's suffering simply because you don't want to be the person who makes the tough decision.