This is no longer an effect of blood pressure or dietary intake. If blood is within the mucus of your stool, then indeed fiber would help. However if you are squirting blood, and you experience no pain, then that nulls the chance of a fissure. It's not something you should overlook, you need a stool test immediately.
My fiber intake is plenty and i read that may help and upped it even more and still the same result. I started taking a probiotic pill because all of my shits are runny as well, it's kind of helping. I only consume 8oz. of eye of round steak daily. That's the only red meat i consume. I've taken pics of my stool, but i won't post them on here because i'm sure people wouldn't want to see that.