Yesterday I was watching the kids in the pool. I was sitting in the shade. I wasnt dehydrated. All of a sudden I started throwing up.Itried to get up but I couldn't move,an ambulance was called and emergency room people did tests for stroke and heart attack nothing  showed up. they said I heat exhaustion and sent me Iam really tired and sleeping lots I dont think I had heat exhaustion.Could I have suffered some other medical condition?