I never really new or understood what anxiety is. But now I'm wondering if I've had anxiety for years now. For instance,…

I never really new or understood what anxiety is. But now I'm wondering if I've had anxiety for years now. For instance, I just sold my old car to a guy on Facebook but I've been worried that he won't like the car or I'm afraid he wishes he hadn't bought it. I legit can't stop thinking and worrying about it even though it's a done deal, paid and title signed over. 😣