I am saying that if that was indeed the case, then Zimmerman should not have been taken to a police station for questioning without a thorough medical exam, and if they had to arrest him to make that happen that is what they should have done, because if he had had a subdural hematoma or bleeding on the brain, he could have keeled over dead with no particular warning, and the Sanford Police department would have been responsible and could NOT have avoided a law suit....
He was treated in the back of the squad car, by someone, an EMT, who if the injuries were as described not only dropped the ball but set himself up to be sued out of existance for malpractice, and brought up on criminal charges, because he is NOT covered by the "good samaritan law" When you are a trained health care professional you have specific responsibilites, and once you initiate the care of any person you are responsible...the EMT should and would if he was doing his job have told the LE on the scene that GZ, in spite of any waiver, was not fit to be taken to the Police Department for questioning without medical care unless they were willing to take the chance and ignore that he may have serious and even life threatening injuries.
This leads me to the logical conclusion that whatever injuries he claims and was treated for, they were not of a level that would support his head being smacked on the pavement, or a broken nose....IMO JMHO and stuff