PL'ing help...

[newmommy929]

So my older DS was 3 the end of September. He has gone on the potty LOTS of times. There has been probably a good "handful" of times that he has gone poop and pee all by himself (so I know he knows the feeling). However lately, he doesn't even care. He will sit in his poopy diapers and not even tell me. I am just getting so frustrated I don't know what to do...are there any tips? THanks!