My moms dog does this huffing sort of thing because he has asthma (i think). My dog stayed at my moms house for 10 days and when he came back, I noticed that he started doing it too. Do you think hes being a "copydog" or is he having breathing issues as well? I wonder if I should bring him to the vet since hes a pug and prone to breathing issues (even though hes never had any issues before) Tia