On sunday my dog started gagging and coughing. At first I thought maybe she just had something lodged in her throat, but its continued for the last few days. Occasionally she'll gag something up. I haven't heard her bark or make any noises whatsoever in this past few days, which leads me to believe somethings wrong with the throat. We took her to the vet this morning, and he is running some tests for heartworms and for pneumonia. I think the problem may be due to bleach we put in one of the rooms to kill mold. I think maybe she inhaled too much of it, since she began coughing and gagging that night. Any ideas?