my son is 19 years of age, he is average weight for height and never suffered any health problems other than anxiety/ no depression with that. Yesterday he was sitting beside me in the car, returning home after seeing a movie,and he started to gasp for breath, then hypeventilate, then he passed out and came out of it quickly afterwards. He looked pale during this time and said he was cold. My son normally complains of the heat and it was not a cold day.