thank you for all of your replies!!! Any advice is VERY appreciated!! She went back to the vet yesterday for chest xrays. Nothing was found!
So she is on clavamox for 4 weeks. She started it up again monday and I already see a decrease in the coughing!
BUT now im worried because i want to get her spayed before her first heat...and she cant get spayed until the cough is gone and she is off the meds! How old were your girls when they went into heat?