Baby girl weight 98%, height 78%. Worry?

Hi everyone I'm stressing because my baby girl is seven months and weighing nearly 22lbs at a height of 69cm. She's been gaining 2lbs almost every month so far and hasn't slowed yet. The doctor says we should cut down on her milk feeds from five to four or three and the rest be meals. However, she largely refuses to eat. She's not drinking more milk than what is considered normal. Should I be worried that she's becoming overweight? Really don't know what to do since we are feeding on demand! Your thoughts are welcome.