My little sister is 18, she is 6
foot 2, and weighs about 189 lbs. Two days ago she was sitting on the couch when her left arm went numb and tingly, her face was tingly, and her heart started to beat fast and off and on, she turned pasty white, started to sweat, and couldn’t understand anything that was said to her. This lasted about 20 min, and then off and on all day. Since February this year she has had episodes of this sort, sometimes worse, sometimes better.