DS is 3.5 and just can't seem to toilet train for wee, though he is fine for poo. He says he can't feel when he needs to wee, so he wets his pants several times a day. He NEVER says he needs to go to the toilet and always answers NO when asked if he needs to, but will wet his pants minutes later. He's reliable at actually doing a wee when he's on the toilet, but never seems to get the message when he needs to go.
One of his carers at daycare suggested that maybe he should see a dr about whether there's a physical issue. Has anyone been through this? What exactly do they investigate? DS is likely to just clam up if questioned by a dr.