Extreme morning sickness, also known as hyperemesis gravidarum, isn't your average "morning sickness". Morning sickness and HG are two very different conditions. They have different complications and the side effects are different for every pregnant woman. It’s important to know the difference between these two conditions in order to properly treat your symptoms.
Morning sickness typically includes nausea that can sometimes be accompanied by vomiting. These symptoms tend to begin in the first month of pregnancy. It usually goes away by the third or fourth month.
HG typically includes nausea that doesn’t go away and severe vomiting that leads to severe dehydration and the symptoms of HG begin within the first six weeks of pregnancy. This condition can be extremely tiring and can cause extreme fatigue that lasts for weeks or months.
To learn more about what HG is, and what the symptoms are you can use this link: https://bit.ly/3pKP9e3