Uh, would just actually drinking a ton of water not help to dislodge the 25 lbs of impacted fecal matter along with alleviating some of the bloating be a good start?  Seriously. Elvis has been reported to have died with something like 23 lbs of impacted fecal matter in his colon. Drink water and eat natural fiber, you idiots!  Also, don't abuse opioids, they're constipation machines in and of themselves.