Headache like I drank champagne and my skull is being hammered in (I don't…

Headache like I drank champagne and my skull is being hammered in (I don't drink and didn't during pregnancy) or like capillaries burst inside my brain or like my brain swells, there are many things you can compare this pain with. Has anyone experienced something similar? What causes it to start hurting so strangely on this week?