Ds (5) has moderate learning difficulties. He started walking at 3 and is yet to start talking although he does sign quite well. We started potty training at 3 when he started walking. 2 years down the line we're still not there. He can manage a poo in the potty occasionally if i leave him bare bum and sometimes a wee also although he has to do it "standing up like Daddy". Mostly though he just wees or poos whever he is. I'm starting to think there might be a problem with muscle conrol and knowing when he needs to go as when he does use the potty it is literally as its coming out that he sits on potty. I've been debating putting him back in nappies as its just stressing me and him out now. Anybody got any experience of this?