Diarrhea in my pants help?

Today at school I really had to go to the bathroom. My teacher has this rule that you arenot aloud to go to the bathroom after recess. I kept on asking but she would not let me. So I went just a little in my pants when the bell rang I ran to the bathroom.I had alot of green liliquid coming from my but. I thought it was diahrea but it was allliquid my doctor says I am constipatedbut I don't know what was the liquid?