I suffer from Exercise Induced Asthma (EIA) but for the most part run symptom free except when the temperture drops below 50 degrees. From that point my chances of suffering symptoms goes up as the temperture goes down.
Whenever I run in cool or cold conditions I tuck an Albuteral inhaler into my waistband and use it as needed. A doctor could diagnose this condition. Its not that uncommon, about 10% of the population has it. Many are not aware they have it because symptoms only show up while exercising.
If it is EIA it is easily treated and should not impact your running goals.