I'm 76 Years Old, Female, And Have Always Been In

I'm 76 years old, female, and have always been in reasonably good health, unmarried so do most of my lawn work and other simple repairs and upkeep to my home. Am now retired and diagnosed with diabetes, under control. For the past year I prespire profusely with little exertion, even working indoors. I am exhausted most of the time and become short of breath quickly. My doctor ordered a treadmill test a few years ago which I was only able to maintain for a very short time but it was felt that my heart was alright except for a small aneurysm near my heart that may have been there since birth. I walk twice a week for exercise. Can you give me any insight into my symptoms? Thank you. My email address is YYYY@YYYY .