Kitty litter as a substrate...wow.
And an active BP usually means something's up. In this case it's probably the lack of heat and hiding spots.
Be sure to set him up in a nice small enclosure, sterilize the one that with the snake, and the heating elements MUST be a on a thermostat, if you don't already have that.
When I soak my BPs post-shed, I usually hear them breathe...probably just some water in their nostrils. No big deal.