I still remember when my wife had morning sickness and she was vomiting or feeling nausea in the morning.  It's actual quite bad to get.
Yes, it can be quite awful. Thankfully I didn't experience it with either of my pregnancies. Could you do anything to help your wife?
may be useful. For severe cases that have not improved with other measures methylprednisolone may be tried. Tube feeding may be required in women who are losing weight.
Morning sickness affects about 70–80% of all pregnant women to some extent. About 60% of women have vomiting. Hyperemesis gravidarum occurs in about 1.6% of pregnancies. Morning sickness can negatively affect quality of life, result in decreased ability to work while pregnant, and result in health care expenses. Generally mild to moderate cases have no effect on the baby
the answer "yes" asserts a positive answer and the answer "no" asserts a negative answer, irrespective of the form of the question. However, simple "yes" or "no" word sentence answers to yes–no questions can be ambiguous in English. For example, a "yes" response to the question "You don't beat your wife?" could mean either "yes, I don't beat my wife" or "yes, I do beat my wife" depending from whether the respondent