My elderly dog (13 yrs) has heart problems (on Vetmedin, Cardalis and Upcard). She coughs quite a bit now. Has had blood in her stools on and off over the last 4-5 days. Vet not too concerned though he hasn't examined her yet (sent photos of stools). She does not seem keen on her walks now - very very slow.
My worry is she looks sad but doesn't seem in obvious pain (hence vet didn't feel it was urgent to see her). Still eating but has sometimes left some of dry dog food now which is unheard of for her. No accidents in house.
Could she be in pain and not showing any signs? When do I know it's 'time'? She does wag her tail still.