I feel lightheaded, nausia, I feel like I can t breath I have to take several deep breaths. Everything is bothering me...I need to do things but I don t want to leave my apt...I had a panick attack before over a year ago. 25 year old female, not overweight, eats right, exersize moderately. I don t know whats wrong with me I feel like I m loosing my mind :(