No, a migraine doesn't feel like a dull ache. What you probably have is a tension headache. A migraine is characterized by extreme, severe, even crippling pain. Light and sound sensitivity, nausea, vomiting, and lightheadedness also accompany migraines. Tension headaches are dull, throbbing pains focused in a single part of the head, whereas migraines cause pain to the entire head.