For three consecutive days, I've been experiencing severe headaches. I cannot find a probable cause of the headache so I am starting to get worried and paranoid about it. Lack of sleep is not a probable cause since I always get 8-10 hours of sleep. Yesterday afternoon, my sister and I went to the beach and we had to go home right away because of my headache. I felt relief after drinking a tablet for headaches. I am really worried and I hope this is not serious (I really do hope so). Has anyone of you experienced consecutive headaches before?