I have no advice, but have an identical son. I'm told it is perfectly normal.
Originally Posted by LadyBug & BabyBug
My DS, 9 months, runs pretty warm also. Any time he naps or sits in his carseat his little head just gets really sweaty. He did have a full head of hair (as you can see in the pic in my sig), but a few days ago DH gave him a haircut, a really short crewcut. I'm not used to it yet (it makes him look so much older!) but it is keeping him cooler. No, I'm not recommending you give your DD a crewcut