Hello, Thanks for the query.
Any
blunt injury ( punch is one of them) over ribs may have break (
fracture) the ribs of your husband.
He was shaking due to injury and some what
anxiety. Now there is no anxiety and no fear but after effect of injury are there.
He might have got some fracture in rib(s) because he is continually c/o pain during breathing , laughing , coughing.
These all parameters are suggestive of # in ribs , so please get a X-rays of effected part and rule out any internal injury.
Good luck , have a good married life. Dr. HET