General health. Is the reason of this?

There isn't sufficient information to come to a specific diagnosis. You may require antacids, antipyretics and if indicated antiemetic. Kindly visit an ER where you can be assessed and undergo further investigations to find the cause of your ailment. These following steps may help: - Avoid cold food and water, preferably have hot food and water - Don't skip meals have a liquid diet containing soups and progressively increase to solid diet as per how you can tolerate. - Have food rich in vitamin C such as oranges to help build immunity. - Drink plenty of fluids, drink 3 liters of water per day - Do steam inhalation (plain steam) thrice a day and apply vaporub over your chest and nose - Maintain good personal hygiene(Wash you hands regularly) - Rest plenty, body heals while at rest