OldKarl here. I am already a member of several other Mayo groups. When you have multiple systemic diseases, all incurable and all eventually fatal, everything of body, mind and spirit is up for grabs. For my heart rhythm issues, I have frequent spells of tachy, early or extra beats, slow, diastolic disorders, dilated cardiomegaly, QRS bounces, etc. These have been dXed as many different disorders, from excess vitamin D to Polio to Amyloidosis. I have a list of about 100 different dX in my 80 years. The current certain dXes impacting the heart include RyR1, RyR2, FKTN, Gelsolin, CAA, RA, Radon, Chronic Bronchiectasis, Cancers: Prostate, Thyroid, Melanoma, Esophageal. Married 60 years, 4 children, 10 grandchildren, 18 great grandchildren (including 2 Marine Great Grandsons)