Say you get your DNA sequenced, say they even find a segment that seems "off" from other DNA sequences.
What the heck would you do about it? We don't understand DNA and protein folding enough to actually take the output of DNA sequencing and give you something to change that. We don't have a comprehensive view of the human body or biology or DNA to do anything with it. There's not really going to be much in the way of treatment for a single instance of a random negative mutation.