Hi oneday,I'm so sorry to read of your ruined vacation. Hopefully you were able to squeeze in some good times as well.Nst is right about the fiber... it might just help out your D by bulking it up. I believe Fibagel is a stool softener. I'm not sure why you would be on that if your problem is predominantly D. What are the other 2 meds you're on? If they aren't working, you might go back to your doc and ask for another. It's quite common with antispasmodics to have to go through a couple to find one that works for you.In a crunch (like when you're on vacation) you can always try fennel tea. Fennel tea works as an antispasmodic. I keep it on hand at home and at work.
Hope you're feeling better!