I am 25 years old. I usually suffer from headache during climatic changes and sometimes in general too from last 3 years. But the headache never goes out of control. I think it's sinus and has never use medication for that. Coming to the problem previous year I had to go trip via aeroplane in august and had a major issue while travelling. Got a major headache and also bleeding from nose which continued for almost 48 hours. This year also I have a trip to go on august. What should I do?