Funny you should mention morning sickness coming back! I am 21 weeks and this morning, out of nowhere, I vomited! Mine was that bright yellow color because I had nothing in my stomach. It has happened to me before, but that was 3 weeks ago. It hurt so bad. I thought I was going to burst a blood vessel in my eye or head or something! I thought it was gone for sure, but I guess not. I think maybe there was another spike in the hormones. I know some women suffer with morning sickness their entire pregnancy, let's pray that's not us! Hopefully it will be gone for good in a couple of weeks here!
i would see the doctor i was never sick in pregancy so i dont know but if head is sore to it could be form the violent vomiting or stress but i think you should see the doc good luck