Hello, I read through your query. If I were your doctor, I would consider evaluating you for Asthma. The following risk factors were present would make asthma more likely. 1. Symptoms of breathlessness and cough appearing suddenly and self-limiting in nature. 2. history of allergies/atopy in the past or in the family. Diagnosis can be confirmed by physical examination and spirometry where lung volumes will be studied. I hope the advice was useful. Please feel free to write back if you have any further questions, I will be glad to answer.