If you have a bedroom with gps in and the ceiling has gone damp, but the window is open all the time, could this possibly cause guinea pigs to have breathing problems - i.e. wheezing and bad chest? We think we have a problem in the bedroom, even though when we moved in 5 years ago, it was totally redone, new wallpaper and skirtings, but I wondered if this could cause problems for the guinea pigs? I am trying to get to the bottom of my guinea pig who has a bad chest and is wheezing. I would really appreciate it if someone could please advise!thanks.natasha