When semi-active in vary warm weather (temperature over 85), I often experience breathing difficulty and an odd sort of heaviness in my chest. My pulse gets erratic. One one occasion , within hours , I went to the cardiologist but EKG and pacemaker check revealed no problem. This has happened when I'm on the golf course (using an electric cart), and when I'm on the golf practice range.
Have had the pacer over 2 years but just began experiencing this during the last year. Also, as the temperature warms up by mid morning, , if I don't shed a layer of clothing soon enough, I begin to experience the heaviness in my chest.
Any clues on the cause or the solution?