You may want to consider asking for enemas, they are good to have on hand too, but i think it was smart to increase the pentasa to nightly for the time being. I wouldn't get too crazy thinking the worst. It very well could be a hemorrhoid or fissure. I feel like the word "normal" is somewhat individual. While most people likely don't see drops of anything, it's probably not uncommon to see something. I haven't been normal in so long, it's hard for me to say what's normal these days
Try to stay calm. I bet the increase in rectals will help get your mind off this - but of course, keep an eye.