Hibernation Attempt??!

[JLB92]

Hey everyone, so basically my hedgie is acting a bit strange tonight. He was under his igloo as usual around this time, so I removed his igloo and started to take away the fleece strips. Normally, he takes a few seconds to wake before sniffing around which is what he did tonight, so that is okay. He was sniffing around a bit but then started to try burying himself in the bedding. He put his visor down and spiked up so perhaps he just got scared for some reason? Then, I tried to put my hand near his nose to let him know it was just me, but he stayed spiked up with his visor down. I tried to pick him up and was only able to move him a bit. Once moved, he stayed spiked up, visor down, and not moving. His belly seemed a bit cooler then usual so that has me concerned. I finally was able to pick him up and I now have him on my lap under some fleece. Here's what I know:

-the heat in my house broke downstairs, so I moved him upstairs on a desk where the temperature has stayed between 70-75F.

-he seems to be eating and going to the bathroom as normal.

-the room I have him in has less daylight then the room downstairs.

Basically, I am just worried that he either tried/is trying to hibernate or is sick. Please help!!

[JLB92]

Also, I have noticed what looks like white dust from his bedding near his eyes. I am not sure if it could be a sign of a URI. He normally sneezes every once in a while due to the dust from the bedding and he licks his nose quite a bit, which can also be a sign of a URI??

He just seems kind of off and almost like weak. I am not sure what to do.