Hi,
Welcome to Healthcaremagic.com.
I had gone through your question I can understand your concern about your respiratory issue.
As per your history of episodes of severe
cough (non infectious), it seems to me, it can be because of the
allergic reaction to some stuff.
Head ache may or may not be associated to it.
You need to visit an general physician on the day when the cough episode happens, because the allergic signs are short lived and heals of its own, as in your case.
For mild head ache, you can go to get your
refraction error of your eyes done, or check yourself if it happens on the exertion days or is related to blood pressure.
Hope my answer will help you and visit us back if you have any further questions to be answered. Also provide your valuable feed back so that we will continue improving our services.
Regards
Dr Muzaffer Hussain Parray.