What you really need is this stuff. Trust me.
It tastes like wood chips and feels like drinking liquid glue, but it is like magic for your anus and shit. No matter if you suffer from diarrhea or constipation, it makes nice shits. Just make sure to drink enough.
Really. The first few times you will think "euuugh" when drinking it, but then you will celebrate each cup because you know it produces those magic shits.
Also it's natural and more or less physical as opposed to the pharma shite.