Different women have different experience. For me, I am better during my 1st semester. Now that i'm on my second semester, I experience more vomiting and headache. I also experience mild cramping from time to time which i think due to my uterus expanding. If yours is severe, you may check with your gyne. Dont worry too much. Just focus on you and your baby's health.Enjoy your pregnancy. :)
Hazel Lee