When I fell down the stairs bum first few years ago, the impact on the tip of my bone marrow made it hurt so much and I couldn't get up for the first few minutes. All I could mumble out was "honey" but hubby was having a shower upstairs and couldn't hear me. Pao saw me hurting and calling for hubby and he ran full speed upstairs then few seconds later ran down full speed to check on me then up again then down again then up again. His little furry face looked all worried as he was running up and down. He knew I was hurting. By then, I felt better and I limped upstairs to see what he was trying to do. He was sitting in front of the bathroom door trying to get my hubby to come out to help me but he didn't know how lol so he sat there staring at the door. That proves to me he does know when I am hurting and tries to get help for me