We have had the opposite of growing pains. Kyle grows pretty slowly. He is nearly 4 and takes 2.5, 2.5, and 5.0 at his three doses. he takes the larger dose in the evening so that (hopefully) it will suppress the early morning surge that the gland normally does. He does (and always has) have larger penis that his peers. OUr endo even measures it. Even when we seem to have good control on the lab work, and good bone ages, the penis size remains pretty big.