ever since I've given birth last week I had internal tear as well. I haven't been able to control my…

ever since I've given birth last week I had internal tear as well. I haven't been able to control my bladder. If I don't go every hour or less I will completly pee myself. . an no matter what I do i can't stop it... I've never had that problem before. is this normal or should I contact my doctor. it's so embarrassing