Normal or bad?

Hello everyone,

I am a chinchilla parrent since 1 month and a half to a boy baby chinchilla who is only 3 months.
I am writing here because two days ago I started to hear for the first time my poor chin sneezing.
I thought is because my mother in law has cleaned the floor with a little more detergent that I usualy put in the water (she is with us only for a week for the Holidays) but yesterday the baby sneezed again and today I heard him again.
I searched through the internet and I searched for eye or nose gunk and he doesn't have it, but now in his sleep is making some noises as he is crying or something like a very silent baby crying.(or a baby dog)
The only vet in this city is on holiday as I already called him, and I have no other vets in the area that knows at least something about chinchillas. (I am from Timisoara, Romania)
I also think that last night he wasn't very agitate as he ordinary is (usually all the toys are all around his cage) and also last evening he stayed in my arms a lot more than usualy and he also fell asleep at some point in my hand.. It's not the first time that he sleeps in my hands, but now he was more not lethargic, but he stayed there a lot...

Could it be normal? maybe he is just tired, or maybe he just sneezes like me (I sneeze everyday :)) a lot I would say and I am not alergic and not with flu)...

Any suggestions would be highly appreciated. ( I really love my baby chin and I am almost crying while writing cause I don't want anything to happen to him)