Hi

I was wondering if anyone has seen the likes of this.  On the 23rd of July I
took my cat Timothy to the vet for his annual checkup/vaccination.  The vet
said he had a significant heart murmur, and elevated urea/creatinine levels
in the blood.  He gave him his vaccinations, since Tim is an outdoor cat.  I
decided to switch the cat to a lower protein food for a couple of weeks and
then take him for a urinalysis.  All was going fine until 3rd August, when
the cat started showing signs of lethargy.  It started with taking the
stairs one at a time on the way down instead of the usual streak, and
sleeping all night on my bed without the usual 4:00 am playtime.

Took the cat back to the vet yesterday (August 6), and had the urinalysis
done, as well as heart and kidney x-rays and another blood test.  Tim has a
slightly enlarged heart, but no obvious defects otherwise. Also one small
kidney with a probable stone, but the other is fine.  He now sleeps ALL day
and seems a little unsteady on his feet when he does get up.  He is eating
and drinking normally, and urinating and defecating in his litter box.  The
vet said he was grooming himself, which is a good sign.  His breathing seems
normal.

I'm just amazed that the deterioration is so sudden.  The vet can't locate
anything obviously wrong, and frankly I can't afford much more in the way of
investigative testing. I'm taking him in for FIV tests later.  He's a
completely different cat from 7 days ago (he caught a bird last week, first
time I've seen that!)  Could this be a reaction to the vaccinations?  Any
other ideas?

Thanks for any input.

Toni