Welcome to HCM. Taking paracetamol
will only give you temporary relief. Your symptoms are indicative of viral infection. See an emergency room, get clinically examined and get all the blood ( R/E,C/S ), urine and stool tests done.
You may need a chest X-ray as well. Keep yourself well hydrated, since you are having diarrhoea
you may need oral electrolytes or infusions. Take light, non-oily food, porridges, etc.
Antibiotics, antacids and paracetamol will be helpful. Your treatment will depend upon the severity of your symptoms and your present condition. Do not pop in medicines without consultation with a doctor. Take care.