Two years ago, I was on the low end for BMI range. I went overseas and didn’t have a place to exercise. Despite walking everywhere, as transportation in that country, I put on weight. I blame it on having what I think was a sinus infection for a while. When I’m sick, I tend to eat more. Anyway, I gained a lot of weight over the course of two years. I have finally returned to a workout routine, along with giving up sodas and caffeine. I also have cut calories , and am keeping a calorie journal each day. I think it is helping.