Anxiety does cause digestive problems like diarrhea and constipation... I don't know about it causing Gerd though... that's something to talk to a doctor about.
Thanks for your response it makes 100% sense
No way to know. This is a digestive problem, and it does affect a lot of people who have anxiety. Also can be caused by medication for anxiety. Since you can't know the chicken and the egg story, I'd look at it independently as a digestive problem and approach it that way, trying to improve your digestion and avoiding foods and circumstances (such as lying down soon after eating or chewing too quickly) that contribute to GERD.