UPDATE... why does my kitten smell so bad?

Hi everyone,
thanks for all your help with my previous thread but here is an update:

went to the vet and my cat is a very healthy boy, no problems at all...

But what i did find in a pet store was a cat food called Royal Canin, and they had a special formula for indoor cats...

well i tried this and it helped immensely... maybe it was a kitten thing and he was growing out of it...But this cat food must also be helping, its highly reccomended!!