I always wear a pad during my periods, but very rarely does it ever get blood on it. I seem to only bleed when I use the bathroom. And it is a lot of blood at that point...like it was just waiting for me to pee. Also, I have cramps so bad along with it for the first one or two days that I end up dropping whatever I am doing and going to lay in the bed. I am not new to periods. I am 21 years old. Is this normal? Is there something wrong with me?