Hi, I am 24 years old(male) with a height of 5 feet , 9 inches and weighing 78 kg. I suffer from Migraine . Whenever I roam out in Sun and sweat a lot, the same night, the backside of my head(near neck ) starts paining immensely. The pain stays for a day and I need a good 6-7 hours of sleep to get rid of the pain. I am suffering from this since I was 15. Please help me with a solution.