According to his son's twitter, one of his arteries opened up a week after he had his tonsils taken out:
So what would that medical ailment look like? Scroll down to see (warning: not for the faint of heart):
Thanks, Billy Ray! I can't tell if he's picked up his daughter's habit of oversharing on twitter OR if he was so overcome with excitement to see a real-life, actual achy-breaky heart that he just HAD to take a picture of it. I just don't think you'd understand.