If i have pains on my right lower side vomiting but no fever what be it could and the pains are like stabbing pains?

Hard to know: Could be gastroenteritis (stomach flu) which is benign and should resolve. Could also be serious as in acute appendicitis. More information about you will be necessary for a physician to offer a more educated opinion and plan. If you are able to drink water, actively function, and don't have fever or GI bleeding; then consider a virtual consult or call your primary doctor. Good luck!