Dog Dry Heaving Yellow Phlegm My Dog Is Dry Heaving, Pucking Yellow Mucus And Weasing, What Could Be Wrong?

My dog is dry heaving, pucking yellow mucus and weasing, what could be wrong? - dog dry heaving yellow phlegm

It is a black Labrador 7-9 years and has been tested for the worms from the heart. ACS was a stray we took in about a year and there were 8 tumors removed from his neck. It seems to be fluid in the lungs or something blocking the airway, which is good when there are only NEAR Although