a term for every expression

when you struggle to describe an emotion, you are experiencing using basic language and then in a movie, you hear someone referring to the same emotion using a single (foreign) dense term that clearly encapsulates your feeling.… you get boosted by the intensity of language and in solidarity with humanity at large as if you got promoted to a trendier scale.. but wait, … you always had experienced that feeling/syndrome … be it a post vacation syndrome, or withdrawal, or postnatal depression, or menopause related moods… It is inexplicable that pain gets lighter and easier to carry when there is a term for it.