I'm not sure we want to open the can of worms that is releasing medical records to the public. There is generally a lot of information in there, much of it personal, much of it irrelevant to the presidency. I do think, however, doctors should be obligated to notify someone if a presidential candidate has a life threatening illness or one that would impede his/her ability to do the job.
At the end of the day, this conspiracy around Clinton's health just doesn't make any sense.