I go running, biking, skating, the list goes on quite often. I had the exact same thing at first. Now I just ( 16 months in ) get fire engine red boobs and my face turns big red , red. xD
Exercise is excellent for hrt because it gets the blood flowing to all parts of the body, and in turn distributes the hormones more evenly and thouroughly. ( sp , sorry, german here ) However, a good diet is important too, not enough food, no growth.