There are a lot of people who have migraine headaches. I have a friend who has them, and sometimes when she has one of her bad headaches she has to go to bed. I’ve never had a migraine myself, but I know it’s enough when I have a regular headache. I don’t have them very often, and it usually just lasts one day if I do have one.  But when my friend has one of her bad migraines, it might last for several days. She has to go to bed for part of that time and might even have to miss work. I feel for people who have headaches like that!