For the past few years i have had blood in my stool. I thought it was hemorroids ,however there is no blood or pain in my rectal area. THere is only pressure followed by the urge to have a bowel movement only to go, and there not be any, but only a toilet bowl full of blood. It happened for 3 years back to back, iwas told by the doctor it was nothing , due to the fact they did a stool test and it was no blood in there and there wasn't any blood on the toilet tissue or any of that . it stopped last year, and now it is back full force. THere is blood ,on the tissue and in the toilet bowl. A doctor told me to change my eating habbits, but that was not it . The blood is very dark in color , and now it's beginning to clot. I just need some answers, and i have an appt. in May but i really need to know exactly what to tell ehr and look forward to hearing. Any help would be useful, Thank you (And i am 18 years old by the way)