I'm about 12 weeks and have been getting pretty bad headaches daily. They have nothing on today's. It hurts from my shoulders up and is making me nauseous. It feels like a sinus headache mixed with a tension headache mixed with a dehydration headache. (I'm definitely not dehydrated right now). I don't know what to do to get rid of it. I've tried eating. I've been drinking water all day. I took 500mg of Tylenol a few hours ago and my headache laughed. Please help me get rid of it!