Editing Morning sickness (section)

==Signs and symptoms==
About 66% of women have both nausea and vomiting while 33% have just nausea.<ref name=ACOG2015Full/> Symptoms of both nausea and vomiting will normally climax around 10 and 16 weeks of pregnancy, subsiding around 20 weeks.<ref name=":1" /> However, after around 22 weeks, up to 10% of women continue to have lingering symptoms.<ref name=":1">{{cite journal | vauthors = Lee NM, Saha S | title = Nausea and vomiting of pregnancy | journal = Gastroenterology Clinics of North America | volume = 40 | issue = 2 | pages = 309–34, vii | date = June 2011 | pmid = 21601782 | pmc = 3676933 | doi = 10.1016/j.gtc.2011.03.009 }}</ref>