Chronic laxative user due to pain meds. Switching from Macrobid to Cipro for UTI and no bowel movement 3 days. Have tried usual Mirilax, Ducolax, hot lemon water. While on Cipro could only hold down boiled eggs and white rice. Am eating small amounts of recommended fruits, prunes, pineapple, pears. When do I begin worrying about fecal impaction due to rice and egg diet for 5 days?