my dog is 7 years old, male 2months ago my vet told me he may have a heart condition I havent had any tests done. Last week my dog was walking and he fell down and it looked like he was having convulsions his tongue was hanging out and its seemed like he was have a hard time breathing, since then he started walking really slow, he seemed better a few days later and started walking faster and wanting to go for walks, last night his breathing sounded really bad and it sounds like he keeps trying to cough a big hair ball up and his stomach is really big and bloted, the vets closed and i dont know what to do and i dont have a emergency pet hospital in the area.