Thanks for your query.You have noticed stool in your blood and think it to be due to hemorrhoids.Since you are 66 yrs old I would ask do you have any increased frequency of urination and urgency as well.?Because this is the age when one gets secondary hemorroids due to enlarged prostate
.Please get your ultrasound
scanning done to rule out the same.Please consult Gen surgeon or Urologist
who will do proctoscopic examination to ascertain the degree of plies and would advice you the further treatment.