Hello, I know all about this. Like every house in California has termites if they’re old enough and also my parents were real estate agents when I was growing up, and also the house we bought had termites and needed some work done before we could close escrow on it and a million other things. Also one of my dad’s long term clients who became a friend pretty much wrote the text book on termites. (Someone had to)
First of all, don’t freak out. It’s not 100% termites.
Call a pest control company that gets good reviews. Most of them have free inspections. Get that. Maybe even get two from different companies. See what they say and then you can make decisions.
Also termites can live in a house for a while before they really start causing problems.