醉到呼吸都会痛

This username 'Drunkenness Hurts So Much That Even Breathing is Painful' uses a metaphor to express that heartache caused by something (most likely love or personal loss) has affected one so deeply as if intoxication has consumed their senses. In other words, it signifies that the level of distress or anguish this individual feels leaves no room for relief, comparable to an alcoholic stupor where pain is omnipresent and excruciating down to breathing.