Can weaning off lexapro cause mucus in stool? no other symptoms except mild cramping before bm. no other recent changes except incr. exercise.

Stool mucus: I doubt that this is a withdrawal reaction as you're gradually weaning off the medication. The combination of mild intestinal cramping with mucus mixed with stools suggests irritable bowel syndrome. Do you note similar symptoms when you eat certain foods? Avoid harsh roughage in your diet. If symptoms persist or worsen, see your physician or a gastroenterologist for diagnosis and treatment.