Hi. Thanks for your query. Noted the history and understood your concerns. All your symptoms collectively of dizziness with upset stomach, vomiting, pain, hot and cold speclls indicate that you are suffering from gastroenteritis and needs the following: Clinical evaluation by your Doctor, investigations of the stool, blood and urine, ultrasonography and other tests as needed., A proper antibiotic, metronidazole, probiotic cover. Supportive medications like multivitamins and as needed. If required, you may need intravenous fluids and electrolyte solution so that the dizziness can be tackled with. Take boiled and cooled water. Homemade food only.