Hey everyone! So I am 18 weeks tomorrow and the last 24 hours have been quite an ordeal. Yesterday felt the best I have felt yet in this pregnancy (my 1st) up until about 2 p.m. then it was like I got hit by a bus! I have struggled with morning sickness almost non stop for the past 15 weeks so to get a day where I had energy and no nausea was welcome for sure. It was short lived though because after 2 yesterday I became very light headed and had tunnel vision, nausea and ended up losing my dinner around 8 p.m.. I am having aching in my legs, weakness throughout my body and feel like I have the worst stomach flu of my life. Has anyone else had such a quick turn around from great to awful?