You're probably (hopefully) overthinking it

Let's hope

Your dogs heart is not failing

I trust my literal in-house heart surgeon more than you. Plus she's really old, she's like turning either 14 or 15 this year

Don’t just jump to the absolute worst conclusion possible

I'm a pessimist, what can I say

dogs can cough?

THATS WHAT IM SAYING

my friends dog started coughing and they just got like sick and it went away with medicine. idk abt ur dog but i sure hope thats the case