My ferret is doing a wheezing cough?

Atari has been doing this since yestureday, but when I play with her she doesn't dook rarely, but she does this wheezing noise. And now she's been coughing and it sounds like it has a bit of wheezing to it. I've been looking things up to figure out if something is wrong, but I'm not sure because besides that she acts like nothing is wrong what so ever. She plays, and eats normal.