My kitten of (five weeks – six weeks) appears to have a swollen belly. I have been concerned for a while as it does not seem to go away, my kitten also seems to constipate a bit and isolate himself from other kittens. Although he shows some odd behavior, he still is the most energetic kitten of the lot and eats very often, more so than the other kittens, and he loves climbing, jumping, running, and is an all around happy lil guy. His feces does not seem to show any signs of parasitic infection (no eggs, mucus, blood) and I’m concerned it might even be FIP. Just wondering what it could be, thanks for taking the time in reading this!