Cause of foul sweet odorous bowel movements. frequent loose bm's. diabetic, over weight. could it possibly be c-diff?

Bowel movements: It's hard to say what the cause is at this point. The main risk for c diff is recent antibiotic use however there can be sporadic cases. Other infections can cause diarrhea, so can diabetes itself as well as sugar free foods eaten by diabetics.

Diabetes: Could just be your diabetes/hyperglycemia. Generally pretty sick with c diff. Can certainly check with your doc and get stool culture if dr. Thinks appropriate.