question: A few times a week and a couple times a day sometimes I get really dizzy and lately my vision has been blacking out along with the dizziness. I can catch myself and sit down before I fall and it only lasts from 7-13 seconds. It s happened since as far back as I can remember. I m only 16 and I never thought it was a problem but it s just becoming more common and wondering I it s something to worry about ?