You shiver after vomiting due to your body's stress response (sympathetic nervous system activation), fluid/electrolyte loss causing imbalances, potential low blood sugar (hypoglycemia) from not eating, and the body trying to regulate temperature, often signaling an underlying infection or illness like the flu or food poisoning, which can trigger fever responses (chills/rigors).
This combination of symptoms and signs points to infections like gastroenteritis, cholecystitis (gallbladder infection), pancreatitis, food poisoning, tuberculosis, hepatitis, kidney infection, lymphoma, and leukemias. Call your doctor.
Dehydration is one of the most serious complications of vomiting. If you get dehydrated it can lead to a loss of electrolytes (salts and minerals your body needs to function properly). To avoid dehydration, you should sip clear fluids or take an oral rehydration solution.
Speak to your GP if:
Take self-care measures while you wait for your appointment with your doctor:
It works to raise heart rate and produce sweat after the incident, allowing the body to get rid of excess heat built up by the action. But these physical changes—and the activation of the sympathetic nervous system itself—can also bring on shaking.
Resting propped up in a seated position with the head elevated at least twelve inches above the feet is ideal. Remain in this seated rested position for a minimum of an hour, or until you are no longer experiencing nausea. Do not lie down all the way. Resting in a fully flat position could trigger vomiting.
As horrible as it is, your body does help make things just a little better. First, most of the time your brain will give you that sick feeling to warn you that something is going to happen. Second, just before throwing up your body produces extra saliva, which helps protect your teeth from the strong acid.
Diarrhoea and vomiting can usually be treated at home. The most important thing is to have lots of fluids to avoid dehydration.
Green-yellow vomit or any color that may indicate blood in the vomit is cause for concern and should be checked by a healthcare professional. They should also contact a healthcare professional if they experience any of the following: inability to keep fluids down due to vomiting. signs of severe dehydration.
This is because absorption begins in the mouth (through the saliva), continues in the oesophagus, and then in the stomach. Even if the entire stomach contents is vomited up, many of the calories will have already been ingested.
Avoid eating and drinking for two hours after the last episode of vomiting. Start with small amounts of clear liquids, such as water, ice, popsicles, sports drinks, clear broth or Jell-O for the first 24 hours. Avoid alcohol, caffeinated beverages, and fruit juice.
Repeated or profuse vomiting may cause erosions to the esophagus or small tears in the esophageal mucosa (Mallory–Weiss tear).
Dehydration
Abdominal pain and cramping that can be severe. Nausea and vomiting. Diarrhea. Fever and chills.
Chills (shivering) may occur at the start of an infection. They are most often associated with a fever. Chills are caused by rapid muscle contraction and relaxation. They are the body's way of producing heat when it feels cold.
Make an appointment with your doctor if: Vomiting lasts more than two days for adults, 24 hours for children under age 2 or 12 hours for infants.
The vomiting reflex is mediated by both the autonomic and somatic systems, and consists of two phases:
White colored vomit is usually a product of mucus and stomach acid. If it's foamy, there's probably some air mixed up in there, too. Unless you have other symptoms, it's rarely something to worry about. “If your vomit is white or foamy, it usually means you have acid reflux, indigestion or the start of an infection.
An infection of the digestive tract is one of the most common causes of nausea and sudden vomiting. Gastroenteritis is often caused by a virus, such as norovirus or rotavirus. Bacteria such as Salmonella, Shigella or Campylobacter, can also cause gastroenteritis. These bacteria are associated with 'food poisoning'.
Side sleeping when you're nauseous
If you feel like you're going to throw up, sleep on your side with your head elevated. Sleeping on your side with your head raised can ease symptoms and keep you from choking on your vomit, if you're unable to make it to the bathroom in time.
Frequent vomiting can lead to dehydration (not having enough water in the body). Signs of dehydration include peeing less often crying with few or no tears, having a dry mouth or cracked lips, feeling dizzy or lightheaded, acting very sleepy or less alert.
Sit quietly when you feel nauseated. Sometimes moving around can make nausea worse. To make sure your body has enough fluids try to drink 8 to 10 cups (2 to 2.5 liters) of clear liquids every day. Cold water is best.