I am 72 years of age and hitherto in very good health. I usually walk nearly five miles three times per week as exercise. I am a genetic male, but was gender reassigned male to female in my thirties (including castration). Following a TIA four years ago I ceased taking female hormones. This morning, while lying in bed, I had a very slight chest pain which was just left of centre and seemed to extend through to my upper back. It was only slight and lasted less than 20 minutes and then went away. Should I seek medical attention? I should like to express my thanks in advance for any guidance provided.