Respected user, hi its 
gastrointestinal infection with some bacteria.
*Take plenty of liquids preferably boiled water, coconut water, green tea, 
  home made juices, lemon juice, butter milk etc to maintain your 
  hydration.
*To take care of 
vomiting take molecule of 
Proton pump inhibitor 
  combination with anti-emetic 1 hour before lunch & dinner with 2 sips of 
  water.
*Take light diet - rice , yoggurt .
*Avoid all oily / spicy / nonveg stuffs / beverages .
*In our clinic according to clinical severity we also recommend certain 
  antibiotics for gut infection along with Pre-probiotics to get faster results
*Maintain your BP , blood sugar levels .
*Avoid 
stress / 
anxiety .
*Have sound sleep of 8 hours . 
Hope this clears your query.
Welcome for any further assistance.
Thanks for using Health care magic & giving me an opportunity to assist you.
Wishing you fast speedy recovery from the same.
Regards dear take care.