Please tell me if this was a case of heat exhaustion, a 54 year old male was working outside for several hours in temperatures of upper 80s to low 90s with high humidity levels. He is on medication for high blood pressure, blood sugar & is overweight. He suddenly experienced dizziness, severe headache, nausea, cramps in the back of his neck & across his shoulders, his blood pressure dropped dramatically, he was very pale & was cool & clammy to the touch. These symptoms all got better after being at home for a while in the cool temperature of the house & lying down for a while.