I think that if we could see what our intestines look like, we might want to sit down and cry. :-) When you take 3 shakes daily of P&B you should poop 3 x daily. It's ok to take herbal laxatives to get things moving. They will be safe to take ongoing for up to 5 months.
To remede your current emergency I would recommend a coffee enema. I do coffee enemas routinely. Its not a big deal when you lie down on your back in the bathtub and let the coffee run in, there is no mess at all.
Two heaping tablesp. of regular coffee to 2 quarts of water. You can buy a reusable enema bag in a drug- or home health store. The coffee stimulates the liver to unload stagnant, toxic old bile into the intestines, which in turn stimulates the intestines to move.
There is much info on coffee enemas if you Google. Your intestines sure do need a lot of attention. I am going on raw organic vegetables and eventually vegetarian. The reports I hear and read about the health advantages are really amamzing.