Hello doctor, I have asthma since my 7 year old

Patient: Hello doctor, I have asthma since my 7 year old and i am in my early 20s. I do have have about 2-3 asthmatic attack which is controllable. since last year when i have coughing i get a strong in the back of my head which lasts barely few seconds. U just want to know the reason behind it

Doctor: