For the past 3 days I've gotten up in the morning feeling fine, then about 15 minutes into the day a headache starts to build and by 30 minutes (usually I'm making or eating breakfast at this point) it is insanely intense and unbearable. Has anyone else experienced something like this? My Dr. Googling shows mostly headaches that people wake up with, which hasn't been the case with me. I've been able to take some acetaminophen (25 weeks pregnant) and lay back down and usually its gone by midday and I continue to be fine.

Some possible contributions:
- 25 weeks pregnant
- I just got over a sinus infection which had bad headaches as part of it, but I've been fine for a week before this kicked in
- We just got a big (for us) snowstorm with a drop in barometric pressure. My coworker suggested this as a cause Friday at work, but that seems like it could maybe account for one day - but all 3?

Anyone have any similar experiences or advice?