My Names Aydia And I'm 13 Years Old, For The

My names Aydia and I'm 13 years old, for the past two days my stomach has been hurting nonstop and I don't each much except for little snacks because of the pain. Today I ate something a little bigger than had green diarrhea and after that I've been having bubbling and gurgling sounds coming from my lower stomach and now my stomach hurts more and another thing is it only hurts when I get up and get moving. I'm hoping maybe you have an explanation or when this might Passover or medicine I can take or food I should eat. Thank you!