I Am 71 Years Old. I Have Been Passing Pretty

I am 71 years old. I have been passing pretty good amounts of blood for the last three or four days. I had that from time to time it happens trip dropping. I've had test the like about a year or so ago it up to us to stop cystoscopy and they never found anything. But I'm finding the blood is each time seems to be more and more and instead of just drop sometime is the full stream