Siamese kitten Juno- bathroom songs

I recently added 2 new fur babies to the family, 2 siamese kittens. They just turned 4 months last week. I absoloutely love them! They are littermates, the girl is named Luna and the boy Juno.

First off Juno is HUGE compared to Luna! I questioned whether they were from the same litter, at 3 months i brought them to the vet and asked her to compare their teeth and what not to investigate whether they are the same age and they are! Luna weighed 3.2lbs and Juno 4.82 lbs! He is all muscle and jot overweight at all. Here is a pic.


Is this normal??? He is now close to 6 lbs at 17 weeks, here is a recent pic. I didnt think siamese grew so big.


Secondly, he yelps everytime he goes number 2 in the litter box. He had very smelly diarrhea. Though they were dewormed when i recieved them, our vet did another round in case, and the fecal test came back negative. His poop is still very foul smelling but now more solid, but gosh it smells!! I can't tell if his meows are upset or just an announcement because his siamese meows sound like a grumpy old man even when he's really happy. Anyone have experience with this? I'm worried he's still got some stomach parasite or something.

It could be a food allergy, or have you changed their food recently?

They're gorgeous.

It could still be a more difficult parasite that is found in a "normal" fecal float.  You could ask for a PCR test, which is not done in the Vet's own lab, it's sent out.  Costs more, but sometimes it's worth it when they find the culprit.  Or, indeed, it could be food related.  Or it could be his intestinal flora is just messed up and he needs some probiotics.  Have you tried them?  Many people here use human probiotics for that cats, me included.   Nexabiotics is a favorite.  For his age, you could probably use 1/2 capsule, split between morning and evening.  You might want to start out with even less than that until he gets used to them.

One of my males hollers right before he goes into the box.  I always know when he's ready to go, so if I ever need a sample for the Vet, I'm good and don't have to guess whose "leavings" are whose  

Males at times are bigger than females. I have a 12, or maybe 13lbs, nearly a year old male. His name is Sebastian and he has always been a fatty. I remember at 5 months, he was nearly 8lbs. He's not overweight. My Sebby is just pure muscle. He has a big pouch, but isn't fat. Some males are just on the big side.


Now, compare Sebastian to my 4 months old Inari, he looks huge in size, not in height. Is is mostly likely 4lbs now because I believe she gained a pound since I last took her to the vet. She is small and I hope soon she gets a growth spurt and begins to grow. Sebastian was bigger than her at 4 months.

So all cats are different. I know some females out weight a male. So, it all depends on the cat really.