nauseous & vomitting

Morning sickness can definitely come and go like that during first trimester, so it's not unusual for it to flare up again even if you've had a calmer stretch, but since it's suddenly gotten worse it might be good to give your PD a call just to check everything's on track, especially to make sure you're staying hydrated. Most mums I know go through these waves of nausea at different points in pregnancy, but your doctor will want to know what's going on to rule out anything else.