Sounds like a respiratory infection.
Miranda
I love gerbils! I think I've got just about everything figured out when it comes to them, because just about everything that could go wrong has happened, but I've managed to figure it out. I've done everything from chasing them around the house when one got out to making a 9:00 run to Walgreens to get baby formula to feed the babies that LaFonda wasn't feeding. Let me know if you have any questions! :)