What Causes Severe Constipation Along With Severe Pain While Passing Stools?

I had a really bad experience with constipation (the worst I can remember, a large impaction). Well after all night in the bathroom in severe pain trying to pass it (bad enough that I was vocal with the pain). I even had to dig some of it out. I am suffering from the worst case of hemorroids ever imagined (being turned inside out), I am in great pain, cant walk cant sit, cant lay! I need some instant relief! A numbing or shrinking of some sort! In my shape at this time It would helo if there was a suggestion of something maybe already in the home. PLEASE HELP ME!