I'm maybe 4-5 weeks and have been having terrible headache for the past four days. It started out feeling like a sinus headache, but now it's in the back of my head. It's so bad I'm scared I'll fall over or pass out from the pain. Seems to be worse when I stand up. I'm fine otherwise, just this horrendous pain.

I'm home alone with two kids, so I've taken a Tylenol in case it helps. Thankfully they're letting me lie down and my parents can come over in half hour.

But. Is this normal??? Is it going to keep up? I've never had this before.