Wow ! I have never heard of Slipping rib syndrome.. I know how a broken Ribs feels like and it hurts like hell and there's nothing they can do about it it has to heal on it's own which takes about 3 months.. I broke my Rib the very 1st rib under ur armpit just 1 rib and that hurts and i broke it again the same one..It hurts to breathe, sneeze and coughing...But this new syndrom Ouch !!!! Sounds alot worse.. wedding