Yesterday after excercising my head and face became extremely hot and red it lasted about 30 minutes i was in the a,c house. i drank water and used a cool towel immediately. Today i feel numb in the face and very lightheaded and dizzy. i thought my bp may have been low so i put salt on my tongue my legs feel tinging. i normally have high bp and take hctz and metoprol xl. Very concerned female age 54.