What Causes Pain And Pressure In Rectal Area With Thickened Blood In Stools?

When walking for exercise I begin to feel pain and pressure in the rectal area. This can occur even after a bowel movement a short time prior to walking. Generally, I will have to have another bowel movement immediately after walking. Occasionally I find small amounts of thickened blood in the stools. I have a difficult time cleaning myself after a bowel movement. My stools are generally soft, but I wipe and wipe and usually have to resort to using baby wipes to get clean. Sometimes my rectum is sore following the bowel movement and it is sometimes accompanied by itching.