Help I can not POOP!

I used Magnesium Citrate. ( I had mine in the fridge for a bit so it almost made it tolerable to get down... ) It was the only thing that helped me out. Take 1/2 the dose they recommend and if within 45 minutes-1 hour nothing happens take the remaining 1/2. I was taking so much fiber, that all the liquids I was drinking were just getting "absorbed" by the fiber and getting (sorry to put it this way) packed, instead of helping things move !  Be careful, and as hard as it sounds, try not to force yourself. You can cause some serious damage if you do push too hard. Sometimes it seems like you just have to get "started" and then you will be ok.  Good luck !