My mother hasn't eaten solid food for about two weeks. However, when we change her diaper, it is always poopy. I can't see how she can produce any waste when she's not eating. She was v-e-r-y impacted about a month ago, so could the poop now be left over from then?
Our digestive tract is very sensitive to everything--and continues to move everything we swallow along the way.
If this is concerning you, talk to her PCP.