My most recent episode of this happening was last year when one day I was out mowing our front lawn on quite a warm day. I developed terrible stomach pains and was hot and red in the face. All I could do was get inside, lie on the shower floor and let coolish water flow over me until the pain subsided. My husband just happened to come home at that time and he brought me in water to drink and salt and something sweet (can’t remember what it was). We were out of electrolyte drinks that day- typical! 

As usual I felt very wrung out after the episode....but I’m slowly (lol) learning that prevention is better than cure! Hopefully it will be a long time before it happens again.