Thanks for posting your query.
Your symptoms like vomiting and body ache
suggests viral gastroenteritis
. However it can be due to bacterial infections and may cause diarrhoea and fever in addition.
Viral infections do not need treatment except replacing body water and electrolytes which is achieved by taking plenty of water and Oral Hydration Solutions available over the counter.
If you are more than 50 years then you should also visit your doctor and rule out Myocardial Ischemia
and subarachnoid hemorrhage
(present with sever headache and muscle pains and numbness).
Hope it helps.