I should have said "I would expect" rather than "I would guess" that some sort of file is created. I was responding to how foolish it would be for one to be curious about what was in the file, if one expects that there should not be anything in there in the first place. Then again, for all we know, the FBI is simply the official investigative arm of the government. I am much more concerned about the conclusions government (aka corporate interests) might draw by analyzing the digital trail we leave, especially since all medical records are increasingly being digitized, even if only as a scanned image.