Please, for the love of all that is holy, avoid creamy soups. No chowders. No bisques. Your stomach is already a war zone. Adding heavy cream and butter is like pouring gasoline on a fire. You will regret it. Stick to clear or brothy bases.
Also, don’t skip the salt. Salt is good right now. You lost electrolytes last night through sweat and questionable dancing. Replenish them. Shake that salt shaker with reckless abandon. Your kidneys will thank you later.