I am a 54 yo man experiencing bright red blood during bowel movements. It used to be a rare occurance, but now it is becoming regular. Today there were large amounts of bright red blood during 2 bowel movements. After that, when I thought I had to go again, I only passed gas and there was a large amount of blood in the toilet which

is the first time this has ever happened. Any advice? I have contacted my Doctor today and already have a colonoscopy and upper endoscopy scheduled for this Tuesday morning.