Been there, done that. Last Nov. we cancelled a cruise due to my mother's failing health. Turned out, the day we were supposed to leave, she ended up in the hospital, for what turned out to be the last 3 months of her life. We were thankful we made the decision we did and could be there for her. Congestive heart failure was only one of her problems. A cancer patient, she also battled pneumonia, gastroenteritis, low blood counts, etc. Only you can make the decision that is best for you and your family.