Yes, human nature to take everything for granted and only realize that when something bad happens. I'm glad you had the conversation with that person. At least you two know.
Sorry to know you have back issues too. Not a nice thing to live with, but could be worse.
Yes, the blindness. While writing the post I was thinking which would be worse, but the truth is, you can't negotiate which is worse.
I agree, we should be more grateful and appreciate what we have.
Being grateful should be our default setting right?