Thank you for your query.
I think you are having FLU thats a viral infection . Well your treatment will be symptomatic only . You can take paracetamol
for bodyaches and fever , a decogestant for coryza
. For diarrhoea
you can take lactobacillus
Generally it will subside on its own without treatment.
Hope you are satisfied with the answer.
If you have any further queries feel free to ask.
Wish you good health.