Gone but not forgotten - advice, please?

Hello, lovely people.

This site has really helped over the years. Goldie's one on ones were sooo helpful. Mine is the usual Narc story, D&D Blocked number, unblocked number. Blocked number email, etc, for three years. I still get third party hoovers but I usually deflect them. If he disturbs me at work I'm told to immediately report it. Its been stressful and challenging but I did the best I could and went on with my life. Am very happy, and feeling human and believe me that took a very long time. Lots of therapy, books, and work.

All Great, right? Well I found out through the hoovers that he got married. Ok, psycho gets married....her problem not mine Thank God. While most people would say good riddance he's gone I'm in absolute terror. I don't know why.I can't sleep, I curled up in a shaking ball and haven't been able to eat. I'm just in absolute fear, on guard. I don't want to go anywhere or do anything. He's gone, no contact, and yet I feel like he's not done tormenting me, which was a favorite hobby of his. Is this absolutely ridiculous? Am I completely paranoid? I'm sure this feeling will pass in time, but what do I do when and if this happens again? What do I do now?