I overthink and spiral a lot of course, but sometimes I’ll only realize I’m anxious about something when my body starts reacting to it. This has been a thing since I was a kid: I would genuinely worry myself sick before school and it would spiral into being afraid I would still feel bad there, etc.   
Basically I realized I literally have a nervous stomach. Any level of anticipation where bathroom issues would be the /least/ welcome is where they show up. I’ve been taking medication so my mental reactions and spiraling are actually manageable, but I still get stomach issues when I’m nervous, like for instance tonight because I have an interview tomorrow. Anyone else have this issue?