Hi, during the first trimester of pregnancy ie. The first 3 months of pregnancy morning sickness is common. Symptoms of morning sickness is giddiness, vomiting, nausea, tiredness. It will reduce as soon as she is nearing end of 4 the month....but sometimes it might continue in some pregnant ladies throughout the pregnancy.it is called hyperemesis gravidarum. But it can be controlled by medicines. But it is not for all pregnant ladies..so don't worry your wife will be k soon...we have very good medicines for morning sickness like symporicarpus racemosus, tabacum , cocculus, colchicum, ipecac...if necessary contact me...