Abdominal Pain With Mucus In The Stool Abdominal Pain, Diarrhea, Mucus And Blood In Stool, What Wrong?

Abdominal pain, diarrhea, mucus and blood in stool, what wrong? - abdominal pain with mucus in the stool

Approximately 40 minutes after eating, I had a sudden onset of abdominal pain and pain in the lower middle of the stomach and watery diarrhea. After several trips to the bathroom, especially water and mucus. So I was not worried, but now the mucus and small amounts of bright blood. Someone knows what might be or what should I do to get help on this?