Hi, I can understand your concern. I would like to appreciate you for maintaining adequate hydration during your illness. After going through your case there may be stomach and upper respiratory tract infection. I will advise you to consult your doctor. There is need for clinical examination of your Ear, nose, throat, respiratory and abdominal system. Following investigations may be advisable in your case depending upon findings of clinical examination. 1) Blood tests: Complete blood count, ESR, Kidney and Liver function test. 2) Urine and stool examination. 3) Imaging: - Chest X ray. - Abdominal X ray in standing position. - Ultrasound of abdomen and pelvis. - If required there may be need for CT abdomen depending on above test results. As far as treatment is concerned You may require 1) Antibiotics. 2) Antispasmodic and pain killers with antacids and prokinetic. 3) Decongestant and antihistaminics with steam inhalation 4) Maintain adequate hydration. 5) Avoid solids, spicy, oily food. Have liquid to semisolid food. Hope this may help you, if so do vote.