Does anyone else have anxiety about re-gaining the weight you’ve lost?

This is probably really silly and definitely characteristic of how anxious of a person I generally am. But even though I’ve lost around 15 pounds (total to lose will be around 22), am thoroughly enjoying CICO and feel like I’m on a path to continued success, I am constantly fearing some sort of catastrophe where I gain it all back. I know others have it much worse, just wondering if anyone else experiences this and if you had any suggestions to soothe said anxiety. I’ve never lost this much weight basically since I gained it all and I think it’s the unknown and lack of experience that’s driving my fears!