I am absolutely shocked reading your post - I have exactly the same thing. There should be a post on here from a few years ago describing my situation. I did not know there was anything wrong with me until I was into my 50's (I am 59 now). I have had one very complex surgery in which they went through my back because my aberrant left subclavian artery had eroded my spinal column and embedded in there. There is a second frontal surgery being discussed because of the Kommerellis diverticulum and a vascular ring crushing my esophagus and trachea. I have had conflicting opinions on the danger of the KD erupting. The discovery of my heart issues came when I got very sick, perhaps because you are not, you may never need surgery. I hope that is the case for you.