Im a 15 yearold female. this past year i have had constant dizzy spells that lead to panic attacks or intense trouble breathing. i could simply be changing and then i'll get dizzy and feel like collapsing. my mom thinks its because im over weight when im skinner then most girls my age and i eat like a teenage boy (lol).At times i can simply being up the steps and i have problems breathing and it feels as if i'd just ran a mile. while sitting down doing homework it feels like my lungs are constricting and im not getting enough oxygen.