Let's talk about poop!

If poop is a icky subject to you, well, I guess it's time we all get over that. In 5-6 months, we'll all be dealing with lots and lots of poop! Anyhow, is anyone else constantly stuck between either having diarrhea and having constipation?! Like, it's always one or the other, never regular. I try to treat the constipation with fiber, and end up with diarrhea. I try to treat the diarrhea with immodium and fluids and end up constipated. I would love to just have a normal poop! Any tips or suggestions?