I have a quick question...I just started eating this special fiber cereal (FiberOne..its digusting but hopefully it'll help with my D) and today, I've had like nasty green poop. Like, this color green. AND I have horrible horrible gas pain..that kind that feels like little knives are stabbing you and it only abates when you lie down or stretch. Is that normal for starting to take in alot of fiber? I also had an apple today and wheat bread..I think those have fiber in them too. Has anyone had this problem of bad gas when starting a fiber regimen?