*if you developed CD after childhood, what do you think possibly triggered?

(Ok I know it could’ve been caused by stress of college too but I wasn’t particularly stressed from what I recall) Interested to hear what y’all think! For context, I was diagnosed with CD my junior year of college but had symptoms my freshmen year. I’ve often thought about possible triggers. I came to conclusion it was less home cooked meals/change in diet. (Figured my unhealthy diet was responsible for symptoms freshmen year but clearly was CD in hindsight. )Research has shown chemicals sprayed on crops and chemicals used in processed foods can cause CD. Recently, I’ve also seen tons of research suggesting vaccines can also be a trigger. I received three-shot HPV vaccine in summer before heading off to college. Just saw the study done in Sweden on HPV vaccines showing significant increase in Celiac Disease in 1st year following HPV vaccine. Pretty big bummer if you ask me lol.