catastrophize - making a Mountain out of a mole hill

 catastrophize

/kəˈtastrəˌfīz/

Catastrophizing is a cognitive distortion where a person assumes the absolute worst possible outcome will happen, even with little to no evidence. It acts like a mental snowball, taking a small worry or minor setback and immediately escalating it into a devastating crisis or an impending disaster. [1, 2, 3]