@tcokeefe I have moderate aortic regurgitation. Here is some information, which you may already have, regarding DD from Mayo Clinic's website. It speaks of DD with preserved ejection fraction. Here is the link,
https://www.mayoclinic.org/medical-professionals/cardiovascular-diseases/news/heart-failure-with-preserved-ejection-fraction-hfpef-more-than-diastolic-dysfunction/mac-20430055
I'm also glad that you found this forum. While Connect cannot diagnose problems or give medical advice, it is nice to post with others who have the same problems. As one of our mentors always says, "We are better together."

By the way, @tcokeefe, what medications are you currently taking for this heart condition?