my yorkie is neally 6... shes always done it from a pup. its never affected her. she doesnt have trouble breathing its just like shes got rubbish on her chest, i pat and rub her back and she hack (sorry bit gross) but after that shes ok. normally its wen shes playing with her toys or wen she was on a lead. so we swopped the lead for a harness and shes loads better now xx |