I am a 68 year old female and I weigh 186 lbs. I am prediabetic. I have sleep apnea. My blood pressure averages 130/80. I have Gerd. I take probiotics, pantropozole for the gerd, a statin for cholestoral. My father (died at 89) mother (died at 83) and sister (died at 68), all from heart disease. They all smoked, I never smoked. I have been exercising between 1 - 2 hrs every other day. I eat three small meals a day and have a small dessert every other night. When I exercise I become so fatigued that I m shot for the rest of the day andget so red in my face, it takes hours before my color goes back to normal. Why does my weight not change?