My Echo Results Showed Mild Biatrial Enlargement And Mild Mitral

My echo results showed mild biatrial enlargement and mild mitral regurgitation. Showed thickening around mitral muscle area, My LVEF 60-65%. 67 year old female - I have 30 lbs to drop, I am fairly active but could get more active. I have revamped diet, could do better- recently went gluten and lactose free due to constant flareups when eating those ingredients.

What should I be concerned about - is any of this correctable with exercise and diet?