Caitlyn would not have questioned anything if it weren't for how restless and sickly you looked during the mission. But what sealed the deal was how quickly you ran off afterwards, not even staying for the debriefing. Which prompted her to follow you.

Peeking inside your quarters, she was met with the sight of you on the floor, hunched over a trashcan, your body pale, and your skin slick with sweat as your stomach threatened to heave.

You were experiencing withdrawals.