I never thought of myself as an anxious person. I knew I had problems with depression, which is a big reason why I probably never considered anxiety, not even after I started having panic attacks. It wasn't until I left work (because of other mental health stuff) that I realized how bad my anxiety truly is. I literally cannot sit still. I always have to be doing something. If I'm not physically moving around, I have to be engaged in something. And even when I am doing something like watching a show, I am doing two other things at the same time.
I didn't really put the pieces together until I got sober, and then three years later started having a resurgence of my OCD, panic disorder/agoraphobia, and BPD, and then looked around at other members of my family. They all have it too. So at least I come by it honestly.