so he pooped then?! thats great news, isnt it weird that we are always soo estatic when they poop, lol, you would never have thought you would be glad to see it, ay?
right with the ballooning, they do do that, its quite funny, 1, when their in the
bath they do it to float better, lol, mine balloon out then let their back legs just dangle about in the water, 2, they do it when their due to shed and to stretch, they do it for numerous reasons, its nothing to be concerned about, however the breathing is concerning, im not quite sure what you mean? he stops breathing completely? are you certain? cos i know sometimes i cant see mine breathing, i can watch for ages when their napping and i see no movement whatsoever but they are in fact still breathing, just peacefully, can you answer some questions for us please to help you better?
do you hear any popping, wheezing at all? any sounds at all?
also is there any mucus in or around his mouth or nostrils?
what temperatures is he sitting at up his cool, warm and basking areas?
how do you measure them? with a probe or round stick on one?
what is his humidity in his cool and warm ends?
hope he picks up for you now hes pooped he should feel at least a bit better.
edited to add: you may want to keep
bathing him couple times a week just to keep him
hydrated, also if your misting him or his viv id recommend you not to as this can raise humidity levels too high and can cause respirectory problems. one more thing is you may want to stick to soft bodied insects for a little while just to help out his system a bit better, hes a baby right so id stick to phoenix, silk or butter worms perhaps and the odd wax worm as a treat.