I had this problem last year for no reason. I'm nut yet sleeved. Tried 3 doses of dulcolax, 4 glycerine suppositories with no luck. Then my mother gave me an enema. I sat for an HOUR before it worked...I thought I was dying! I kid you not, a baseball sat in the bowl. My mom called me a baby for crying until she saw it. Never again. If I don't go once a day I freak out. And since I've recently stopped smoking it's worse.
I recommend keeping suppositories on hand, taking fiber everyday and a mild stool softener and the smooth move tea really works! Just don't take it at night. The best and funniest advice I ever got from my ex's mother: "Never take a laxative and sleeping pill at the same time..."