My brother is was out mowing the lawn this morning, the temoeratures were in the upper 70 s but the humidity was 84%. about an hour later he felt like he was having low blood sugar so we got something to eat, hamberger, fries and a coke. Usually he said the symptoms would disappear after he ate but they didn t. Then we got him a slice of apple pie and a frappe with caramel and whipped cream. He said he would feel better but he didn t. He said he thought he should sit down so he did. He was falling asleep and began nodding his head while sleeping, then his legs began moving laterally, I suggested he lie down, he got up, caught his balance and walked to his bed room teetering on the way. He laid down and is now sleeping. He doesn t appear to be sweating and his skin is a bit redder than normal. He is very confused but knows he is confused. He keeps saying something isn t right. Could he have have heat stroke. We haven t taken his temperature or his heart rate.