I experience this at least 2-3 times a month....sometimes more. He has a blockage in his intestines. Right where the large is connected to the small intestine. The pain is soooooooo unbearable. I sometimes am curled up in the fetal position cause the pain is sooooooooo bad. Advil ot Tylenol 3 with coden doesn't help. My home remedy is....I go to the drug store and buy a small bottle of "LACTULOSE", here in Canada it's about $14.00 a bottle and lasts me quit awhile. This usually does the trick and I also take Benefibre too, once in the morning and again b4 bed. I hope this helps.