Usually, toxicosis in a woman manifests itself in the middle stages of pregnancy, when the baby in the womb is already quite developed. The expectant mother is accompanied by nausea and dizziness, she can no longer tolerate the usual dishes, after each meal she is overtaken by the urge to vomit. But sometimes these symptoms of pregnancy occur in the initial stages. In this case, doctors diagnose the so-called early toxicosis. Nausea and vomiting are not the most obvious signs of early pregnancy; food poisoning can become the cause of these unpleasant phenomena. Also, many diseases of the digestive tract cannot do without these symptoms: gastritis, enteritis, stomach and intestinal ulcers.