As a loving animal caretaker, the thing you likely fear most when thinking about caring for your elderly, special needs or terminally ill animal is
PAIN. Will he or she be in pain? How much and how often? How will you know? What can you do about it?
While your companion animal may not be able to speak to you in human terms, there is no doubt that he or she is constantly communicating with you - and you are constantly interpreting and usually understanding that communication. How do you know your animal is hungry? Angry? Lonely? Needs to urinate or defecate? Wants more attention? Desires more play or exercise? Each of these things is clearly communicated to you by your animal. It may take a little time to learn the animal's communication system, it may take trial and error, it may take a certain amount of guess work, but given time, trust, and desire, you
do learn to communication with your animal and interest his or her actions.
The same is true for pain.