Should I retake the GMAT & Should I mention a health issue that I overcame?

Hi all,

I scored a 730 on the GMAT and I was wondering if I should retake it. I am a senior applying for deferred MBA programs. Here are my stats

• non-target school (full academic scholarship)
  -GPA: 3.96
  -Passed CFA level 1
• GMAT 730 (96 percentile)
• 3 internships+ several part-time jobs : 1st: BB Bank (credit research); 2nd Large HF (valuation); 3rd Healthcare VC (deal team analyst)
• Started my own charity and raised $200k. Built 2 schools in Jamaica + support several girls in Afganistan, Rwanda, and Jamaica.
  -not US citizen (lived in 4 different EU countries)
  -survived open-heart surgery (hence my interest in healthcare) - should I even mention this?

Thanks,