Yesterday I fed my 3 year old dum and she seemed fine but today i went and checked on her and she had a clear mucus-like substance coming from her mouth. I've read about some stuff like this and it sounds like a respiritory infection but I'm still a novice keeper and I'm not completely sure. Is this something serious that needs a vet or is there something I should do to help her? Any advice would be greatly appreciated, I dont want to lose my baby :[