I didn't vomit with my first, but I was definitely nauseous over cetain foods and drinks, had headaches off and on, developed sinus infections at the drop of a hat, and just felt generally cold like symptoms around week 6 on. The nausea got better by then start of the second trimester, but my sinuses stayed iffy throughout. The headaches came from blood pressure...that's definitely a fluid intake issue; start drinking more fluids without high sodium and sugar. Make sure you're getting rest and staying hydrated. Things will lighten up as you progress, there's a lot happening in you right now, but tour body will adjust and its all totally worth it. Congrats!!!