Thanks,

I think i'll just expect him to drink more on warm days, and know that it's probably because he's thirsty.

lestypuss, has your hubby ever had his thyroid checked. IN my DH's family the overheating genetic trait (now at 4th generation if bubs has it) has to do with a thyroid problem. Hubby doesn't have a problem yet, it's just bigger than average, but my mil has to take medication for hers. so it is quite possible xavier will have the same thing, and we will have to get it checked occasionally.

we might investigate the water when he's older and summer really starts to set in. We also have a 6 week check in about 3 weeks, so we'll talk to the family doc about the thyroid issue as mil, dh, and now ds have the same doc.

Thanks again