You could be immune. If not and you get chicken pox as an adult it can go badly. It can kill you.
You didnt get the vaccination when you were a child? Maybe when you went to Venezuela? None of your kids got chicken pox? The vax is usually administered when a child is a year or so old.
When I was a kid, there was no such thing as a chickenpox vaccine. That vaccine came out in 1995. I have not taken it. There are some potential problems with it... INCLUDING the possibility of getting shingles later... from the chickenpox vaccine. So I'm going to pass.