My husband is diabetic (type 2) he was out working in the yard this morning, 95 degree weather, he came in and said he was dizzy (he was sweating )approx 2 hours later we went to get something to eat, he ate with his eyes closed most of the meal and kept saying he was so tired. We just stopped by the drugstore on the way home and got checked his BP, it was 97/56, we came straight home and he is sleeping. He is diabetic and had a heart attack 3 years ago. Could this just be the heat and is the BP ok because of that or do I need to get him to a Dr?