Hi Margrét, hi to Iceland!
My english is a little bit frosted, but i try to answer your question. You write, you have no action of the bowels during the days of the WW? It's not usual, but not grave. It's possible to enhance the portion of the Digest juice, that may boost your digestion. Or you can let swell the flaxseed 3-4 hours befor you gulp it (in warm water or low-fat milk, gulp that also)
Did you drink enough? It is very important to drink every time during the WW... also that may enhance your digestion
But the digestion should be normalised when you starting eating after the 5 juice-days, at the "buildup" day. Then your digestion gets food "mass" an that means normal work for stomach and bowel.
If my english sounds funny to you, please sorry. I'm happy to have the "LEO" who helps me to translate... and to defreeze my practice english :-)
Have anice time!
Greetings from Switzerland!