I hope your
blood pressure in normal. Even if it normal, do get it measured regualarly, another common reason in this season could be
cough and cold. The way headache you are having
sinus headache is more likely. Take medicines as advised and take
steam inhalation twice in a day, avoid cold drinks and fried foods, hot soups etc. is better. Wear ear plugs when you go out in cold and sweater etc.