3 Answers

You may be dehydrated. Drink plenty of clear fluids. 

Gastroenteritis Self-Care and Home Remedies

The treatment of gastroenteritis is aimed at hydration and home remedies that address keeping fluid in the body are key to recovery.

Since most causes of gastroenteritis are due to viruses, replacing the fluid lost because of vomiting and diarrhea allows the body to recuperate and fight the infection. Dehydration can also intensify the symptoms of nausea and vomiting. The critical step is replacing fluids when the affected individual is nauseous and doesn't want to drink (hydrate). This is especially difficult with infants and children. Small frequent offerings of clear fluids, sometimes only a mouthful at a time, may be enough to replenish the body's fluid stores and prevent an admission to the hospital for intravenous (IV) fluid administration.

In general, clear fluids (anything you can see through), may be tolerated in small amounts. Think of it as adding just an ounce or less to the saliva that the patient is already swallowing. However, giving too much fluid at one time may cause increased nausea due to a distended stomach, which causes additional irritation.

Clear fluids do not include carbonated beverages but colas or ginger ale with the fizz gone are often well tolerated. Coke syrup may also be helpful in settling the stomach.

Jello and popsicles may be "solid food" alternatives to clear fluids in children who aren't interested in clear fluids. 

Read more: http://www.emedicinehealth.com/gastroenteritis/page10_em.htm#gastroenteritis_self-care_and_home_remedies

"IMODIUM"  Is a good drug for the diarrhia.It should be available over the counter at the pharrmacy.Your doctor can also prescribe a drug for the nausea.Keep up the clear fluids as Colleen says.

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Colleen

Please give valid helpful answers or do not bother answering. This is a help forum not playground for people who think they are comedians.