It’s triggering something for you? Like traumatic experience reminders, phobias, culturally or personally unacceptable familiarity with same or opposite sex sexual and reproductive functions? Or is it something sensory like a smell or tactile experience? Anyway...talk to the mental health at your school in confidence, or a spiritual adviser of your preference, who can help you process your experience and what it’s bringing up for you. Unless it’s purely some smell thing in which case put vapo rub in your mask.