Headache for 7 hrs won’t go away!

I’ve had a terrible headache for about 7 hrs now I took a nap 5 hrs ago to help with it but every-time I wake up to Pee it’s still throbbing. I thought maybe i need to eat and drink so I had an apple and lots of water. Watched a movie and vomited all my food from up to earlier today. Mind you this is the first time I’ve actually vomited. I’ve had morning sickness but never actually vomited anything up mostly just dry heave. I’m 10 weeks exactly today. Should I be worried? Or is this just hunger and dehydration?