mydd (4) has a cst iron bladder goes 6 hrs without having to go for a wee but today she has been at 7.00am, 9.00am, 11.00am and 11.45am - all big wees - no change in colour etc. What culd this be? She had sweet potato, potato, carrot, parsnip last night and i read somewhere sweet potato can be a diuretic - is this the case? Any help please?