I recently adopted a trio of suggies about 4 months ago, a male and 2 females, and the boy has recently been acting strange and not like he normally does, he's lethargic, a little shaky and has been making strange noises that I've never heard before, the noise almost sounds a little like crabbing and hissing at the same time, but I'm not 100% sure it's him since they were all in the same pouch when I heard it, and sometimes I hear breathing noises that also sound a little nasaly, like he has a cold, and I recently got another male (they're both neutered) and he started this behavior about 3 weeks after the new male was put in the cage so I'm worried the new male has spread something to him that he got when we didn't have him, but the females seem completely fine and so does the other male. Does anyone know what this might be? I already have a vet appointment scheduled for all of them but I just want an idea on what it could be. Thanks in advance :) -Sam

Ive heard my gliders do that before too. I can assure you its 100% normal. It kinda sounds like crab hiss crab hiss but in a hiccupy way
also if the cold thing sounds like sneezing, its your glider spitting on their hands to groom

im not sure, but you should take to vet

I wouldn't be worried about the crab hiss, mine do it all of the time