I have Multiple Sclerosis and Topher has become very tuned in to when I'm having bad days. He'll stay in bed with me for hours, only getting up when he has to
but immediately coming back to my side. He keeps close watch over me.
The last dog I had...a terrier mutt, was amazingly in tuned to my health. In her final days, when she was extremely ill, she dragged herself to my side to comfort
me as I was receiving i.v. treatment. Though she was so sick, she just had to try and comfort me.
I truly believe that some if not most dogs become very tuned in to their master's health and happiness. They truly do put us first.