I'm really puzzled and a bit worried about some recent health changes. I never had asthma or anything related to it growing up, not until I turned 18. But after I had this pneumothorax incident, which luckily resolved on its own, I suddenly started showing asthmatic symptoms. I even had my blood tested and my IgE level was at 1500. Now I'm taking allergy shots. I'm confused because if this was asthma, shouldn't I have had symptoms since childhood? Plus, there's no family history of breathing issues. Why might this be happening now?