My 2 year old rat terrier is coughing. She started this about 2 weeks ago and it seems to have gotten worse. She acts like she has something in her throat and is trying to cough it out. She has NOT been kenneled at all. She's 8 pounds, in good health, eats and drinks normally. She seems to make a small little honking sound when she is sniffing on the ground, like when she extends her neck and head.

