Ok, this is my first post here on reddit so howdy y'all! 
Anyway to the point. Ever since I was little (5-6 years old) I noticed that my anxiety would peak whenever I had "stomach issues". If I got constipation it caused me lots of stress and anxiety. If I got constipation's ugly relative... You know which... It would also cause me anxiety, sometimes to the point of panic. Same story with nausea, it made me nervous. To this day, I'm 18 now and these things still cause me huge amounts of stress and anxiety when they occur. As I write this I have stomach pain but nothing else. I was fine but as soon as my stomach started hurting my anxiety *skyrocketed* through the roof. It's almost like I have an intense fear of things going south in my digestive system. I tend to avoid foods I know cause me distress as well. It's not because I'm scared of getting fat, I've never really cared about my appearance to others. Anyway I just needed to get this off my chest and wanted to talk it out with fellow sufferers of anxiety who understand the struggles better than anyone, and possibly get advice. 

TLDR: I'm scared to death of digestive problems and when I get them it sends me into a state of anxiety and panic.