1.   Migraines are a particularly intense kind of vascular headache.

2.   But a couple of weeks after the surgery, Brian started experiencing intense headaches.

3.   Ever since, Davis has experienced intense headaches, although doctors cannot pinpoint the problem.

4.   He began having trouble breathing through his nose and developed intense headaches.

5.   I developed a headache so intense that if I had not known better I would have sworn I had a brain tumor or had suffered a stroke.

6.   Migraines are intense headaches that can last from four hours to three days.

7.   But it is a painful disease that produces high fevers that may last a week, intense headaches, pains in the joints and diarrhea.

8.   In the following days, she suffered an intense headache, much worse than any migraine.

9.   It causes intense headaches, fever, nausea, vomiting and a stiff neck.

10.   It produces high fevers, that may last a week, intense headaches, pains in the joints and diarrhea.