hello, do you have dark coloured urine or yellow discoloration of your skin or eyes?if yes then probable chance of hepatitis.if not next probable cause is gastroenteritis.if fever is there then you can take paracetamol 5oomg along with some antispasmodics like meftal spas.also take antacids like ranitidine bd. maintain fluid level of your body. take light foods. if its severe u can consult a physician. take care.