Hi guys, quick question. Any of you or your children become extremely exhausted after spending an afternoon outside when it's warm? My son seems to get this way after we come in and it continues the entire next day with tiredness and even bloodshot eyes. He isn't even doing anything active or physical, just being outside. I am sure he is well hydrated, and gets extra salt on these days, but it still seems to affect him even the next day regardless. He is not in the sun a lot of the time either, mostly I'm the shade. Thanks everyone.