Si am taking devil ant and have had severe diarrhea for over 6 months now along with vomiting, severe abdomen cramping, breathless when going up steps, bloating, gas, cramping from head to toes. Only just realized it was decile the recently. Was to. Busy taking husband for testing for cancer. Now that we have a diagnosis I can address my problem. Stopped taking dexilan today. Is this a hard withdrawal?