Dear Patient, yes a gastroenteritis ( stomach flu virus ) can typically cause the symptoms you are describing. In most cases this will go away after only a few days though. Until then try to take in enough fluid, eat only light food like soup or similar, and for pain there is paracetamol or ibuprofene available (please check for possible contraindications for your case with your md). Hope this is helping you , if you have any clarificatons you can get back to me, if this was helpful please kindly rate my answer. Best regards