Paranoid of being accused of using AI

Hi. I'm the sort who's used big words for ages and I'm about to become an English major but I'm scared as all heck that I'll be accused of using AI. Has this happened to anyone before, particularly those who'd consider their writing at or above collegiate level and/or use Microsoft Word so you can't view history? How did you deal with it and/or prove your innocence? Did it ever happen? Did your profs. tend to learn your style before making accusations like that?

EDIT: Already appreciative of all the reassurances I'm getting. Thanks to everyone who's commented.