Hi Katalex, yes it is all confusing. Agree to keep her away from bananas (although good if she has the runs !)
I really do think the way forward is the sodium docusate. As far as I know, it just makes the poo soft, so easy to pass, without all the explosions. My dd had terrible time with lactulose, with explosions etc. My heart goes out to little ones (& anyone else) that is constipated.
8g fibre isn't that much. How about porridge which she helps to make with some cooca powder (a tsp) + some sugar ? only give fruit as a snack - eating tin peaches will be fine, much better than crackers.
Need to give her soft poo so that she regains her confidence at going, my dd would hold on to it desperately & then of course the poo dries out & becomes very difficult to pass.
Have you got a coffee grinder ? you can grind up the linseeds & mix them with soup. Red lentils are good, make into a soup & blend, add an apple for natural sweetness.
What cereals does she like ? I'm still kicking myself for letting DD eat tesco's wheat flakes - I thought I was doing the right thing
Will she eat blueberries ? strawberries ? (even tinned ones).
Off to do school pick up, so will try to remember some more tips for you.