Uy, totoo yan at normal lang! Near the end ng pregnancy, ang baby ay bumababa na at nag-pe-pressure sa lahat ng bagay down there, kaya yan ang feeling na parang kailangan mo mag-CR every five minutes pero walang labas, haha. Yung tailbone pain mo rin ay dahil sa weight at pressure ng baby sa pelvic area, super common sa last weeks. Pero since you're almost at term na, better check with your OB lang para sure, maybe they can give you tips para manage the discomfort, or ma-rule out kung may constipation o something else na kailangan i-address bago mag-labor.