I have since 1998 seeing light blood in my stool. When this happens mostly when my stool is a bit loose. For the past year or so I have been seeing blood in my saliva mostly in the mornings, its not too much and light. For the past week I realized that the blood is there even during the day. I don't have sores in my mouth or feel pain anywhere. I also do not have sore gums or anything like that. I have never smoked in my life and I do not drink. Please help. Which specialist can I go to to have myself checked.