My Husband Spent 5 To 6 Hrs Working In The

my husband spent 5 to 6 hrs working in the sun taking occasional breaks and lots of water I did too, I was out there with him the whole time, I notice for the 1st time he was sweating in the gron area which I though it was unusual for him. He said he stopped sweating, and his face started to tingle. So he came inside and cool off and took a cool bath and drank ice water. No other symptoms but the tingling and the stopped sweating. He is himself and ok. Could this be just heat exhaustion or maybe something else. There was no headache or dizziness or confusion, because he knew what to do.