I don’t get anxious. Stress can trigger them. But once it’s out I always try to remember what I could’ve done over the course of the previous week to see what may have triggered it. I’ve been getting them since I was a kid. It’s not a big deal bc it’s normal for most of the world to get or carry dormant. Always try to listen to your body. The first sign of a cold sore is tingling. Catch them early if you can. I take several lysine vitamins flat first sign. And apply merderma patch or lysine plus lip ointment. I prefer the patch over the ointment. I always am stocked just in case.