Sudden change of symptoms

Catherine

I am right around 9 weeks pregnant and all of the sudden the majority of my symptoms have pretty much gone away. I went from vomiting multiple times a day to feeling occasional nausea. Headaches, cramps, sensitivity to smells, to pretty much nothing. All I feel is fatigue, occasional nausea, and I guess moodiness. I just feel scared going from feeling everything to feeling very little, is this normal?