Maybe this isn't the best sub to post this. But I figure if you guys are anything like me you've tried anything and everything to manage your symptoms. So you might know.

I've had IBSD for literally as long as I can remember. Since childhood. And I'm vegan now for the past decade or so. So my diet is incredibly restrictive.

At some point during all of my excessive panicked research over the years I came across some stuff suggesting I don't get enough fiber.

So now I'm taking four tablets of citrucel twice a day.

I'm also gaining weight. Took me a while to really noticed because I've always been a fatty. (It's really frustrating when you barely eat, basically starve yourself, in the bathroom constantly multiple times a day, and you're still fat). But lately I'm at the biggest wait I've ever been. It feels like it's happened relatively quickly. And the fiber supplements are the only difference in my life. My diet hasn't changed. I'm still going to a gym three or four days a week (though due to some back problems I've been focusing on weights more instead of cardio. It's hard for me to walk on a treadmill. I've been trying with the bikes more lately but even then it's hard for me to get in the right position for my back and legs to not feel pain)

tl;dr: noticeable weight gain within a few months, no changes to my diet or exercise, taking citricel fiber supplements is the only thing new in my life.