Maybe you should cut out the laxative pill at bedtime? You're eating normally...that and warm water first thing in the morning will ensure that you have a bm. (or are you naturally constipated??) Also taking 1 tbsp of olive oil with one of your psyllium drinks will help move things through. Laxative herbs, in your case, are probably not needed.
The link below will tell you all about mucoid plaque!