I will give you a perfect example of that. My dog Mindy (the one in the picture
) was very ill this time last year and we feared we were going to lose her. She was tired all the time, not eating and hardly drinking so we took her to the vets. It turns out she has diabetes which is not perfect by any means for a person or an animal but my point is, we feared the worst as we didn't know what was happening. I have to inject her with insulin twice a day, she gets her walks and food at the same time each day but she is back to her old self and loving life again. Not a perfect scenario by any means but nothing compared to the fear of losing her - we learn to adapt when we know what is happening.
p.s. If that is not a picture of a dog content, relaxed and happy then I dont know what is (dont tell my wife she was on the couch though
)