@JSN
Hi! After what we have been through I think for all of us we have a heightened awareness of our bodies and every twitch, tinge has a fleeting thought of who the, what the! Our work colleagues haven't experienced what we have and we tend to look at them a little differently. It's not them that's changed it is us! We have had a brush with, I wish I could say fame, but no, it's our own mortality as we muddle our way through diagnosis and treatment path!
The most important thing about all this is you are here to tell the tale, you have your hubby by your side and you have a holiday planned!
Hopefully you will slowly pack that bag, one foot in front of the other and when you start to feel overwhelmed, take a deep breath and pat yourself down saying, yes this is me and bring yourself into the now!
I agree with @fraser "some one to one counselling about dealing with that brush with mortality may help. But right now, a holiday is possibly the best medicine. Take care, best wishes."
It's a tiring experience that takes it's toll but time is a healer as well as and as you rightly say " I want to be 5 years post diagnosis, 15 years post diagnosis or even 20 years."
One day at a time and you will get there and just don't let yourself get bogged down with the minutia, it is you and hubby and the holiday that is most important at present!
Take care and safe travels