I do not know what the hell is wrong with me. Whenever I drop a deuce, it gets stuck half-in and half-out my ass. It get so bad sometimes that I have to take a stick to break it. I have not noticed much change in my diet. I have been stressed lately. I don’t know what it is. 
Have you checked the, ahem, workings lately for 'roids? Sometimes 'roids are actually located just inside the anus and aren’t immediately noticeable - but will often hold captive your payload due to swelling. Strange that you didn’t mention pain, because often these little devils will bring a tear to your eye from the ache.
Seriously - take a trip to the assman to get a very uncomfortable but hopefully swift check for these dastardly demons.
It might also be something you’re eating that your body isn’t able to properly digest - but bear in mind it’s purely a guess on my part from having had, um - intestinal distress myself.
More fiber, more acidophilus/live culture yogurt/probiotics and more fluids.
At some health food stores (or on-line, or by mail), they have a formulae that combine the 1st two- one version is “Colon Care” by Doctors Trust.
IANArealD, but suggesting more fiber-with more fluids- is a “no brainer”.
Yes, stress will affect your BM’s.
You moved me.
Oh, and if blood appears, or sharp pain, or if the constipation continues after you have added “More fiber, more acidophilus/live culture yogurt/probiotics and more fluids” and given* that* a day or two to work- then hie thyself off to an MD.