I am experiencing splitting, throbbing, pulsating headache since 17 days continuously. I sleep late at night and wake up late and sometimes have lunch very late. Breakfast is usually missed due to getting up late because of cold in delhi. I sometimes consume very less water too but on days when I eat dinner on time and drink proper water this happens. I do not have migraine or sinus and I feel this is something serious as it has been so many days. Am online whole day. What could this headache be? How can I cure it?