very loose stools almost diahorrea with blood

hi for a long time i have suffered on say a monthly basis about 9 10 times a month red blood on my stool, sometimes i think from hard stool,but more recently i have had abdominal pain and then very loose stools almost diahorrea with blood again not huge amounts, but it was a small stool but much bigger than say a dot of blood, my stools are never the same ie- sometimes black and brown sometimes the normal then light with blood, i dont know if this is anything related but my urine really smells foul and is cloudy i did ask for a urine test and that came back with no bacteria please help.