When vomiting is severe, it may result in the following: * Loss of 5% or more of pre-pregnancy body weight * Dehydration, causing ketosis, and constipation * Nutritional disorders, such as vitamin B1 (thiamine) deficiency, vitamin B6 (pyridoxine) deficiency or vitamin B12 (cobalamin) deficiency * Metabolic imbalances such as metabolic ketoacidosis or thyrotoxicosis * Physical and emotional stress * Difficulty with activities of daily living Symptoms can be aggravated by hunger, fatigue, prenatal vitamins (especially those containing iron), and diet. Many women with<unk>  are extremely sensitive to odors in their environment; certain smells may exacerbate symptoms. Excessive salivation, also known as sialorrhea<unk> , is another symptom experienced by some women.<unk>  tends to occur in the first trimester of pregnancy and lasts significantly longer than morning sickness. While most women will experience near-complete relief of morning sickness symptoms near the beginning of their second trimester, some sufferers of<unk>  will experience severe symptoms until they give birth to their baby, and sometimes even after giving birth. A small percentage rarely vomit, but the nausea still causes most (if not all) of the same issues that<unk>  with vomiting does.
Hyperemesis gravidarum
Hyperthyroidism
Postpartum blues
Urinary tract infection
Placenta praevia
Morning sickness  Morning sickness  1
Eclampsia
Puppy pregnancy syndrome