Despite the language barrier, Journalist, I've no doubt that medical personnel in the Ukraine have any difficulty in diagnosing and treating alcohol withdrawal. All you need to do, really, is mention the word 'vodka', and they'll know what they're looking for.
Sleep deprivation produces an adrenaline response which, in turn, results in feelings of euphoria or well-being. Even people who are clinically depressed report an elevation of mood following sleepless periods.
Get yourself to the ER.