I know what you mean, Erika. I tend to not talk about my challenges with my immediate family but that backfires on me when they ask me to do something I know I can't do. Sometimes I might embellish on the truth a little to excuse myself from doing something but they seem to know when I'm not feeling well.
I hate complaining and they know that so it really takes alot for me to back out of doing something with them. And at that point they know I'm really not feeling well.
I hope your family understands and won't worry too much about you. It sounds like you have plenty to keep you busy at home (Ziggy and Willy

) so maybe they'll understand. 10 hours in a car is a l-o-n-g time for even a healthy individual.....even with many breaks.