“A doctor shared some interesting intel with me that left me shook – and he’s not the only one that’s noticed the surprising trend.”
#1: the word is “shaken” (not “shook”, which is transitive, e.g. “he shook the illiterate woman till her neck snapped”)
#2: unless one is referring to a thing or place, it should read “not the only one who’s (or who has) noticed the surprising trend”.
Of course, the tart in question is Australian so one might consider some grammarian latitude, but fuck ’em: they also cheat at cricket.