im 14 and have had asthma since i was born but never needed an inhaler evry time i ran or did something active be4 my 6th grade year ended of elementry school. Now i need to take two puffs every time before i do something active. And when i forget i either start having asthma kick in, which usualy happens or nothing happens and i am fine. Im wondering why I need my inhaler now and why sometimes i do not need it. Please Respond