I am a healthy 110 lb 19 year old female. I have had this shortness of breath since I was about 11 years old. I get it at random times throughout the entire day. I have had an inhaler since about 12 years old, because the doctor said i had asthma, but the inhaler never really worked for me. I went to the doctor about 3 months ago and he said it was anxiety/panic attacks. I know it can't be a panic attack, because I don't get any other symptoms of anxiety, besides for beign paranoid when i get the shortness of breathe. It feels like I can't ever get a full breath. Another thing you might need to know, I was born premature at 5 lbs. I was on a breathing monitor for a few months after birth, because I'd stop breathing in the middle of the night. I've had breathing issues my whole life. Please help me figure out what this can be.