T.M.
Hi,
I know exactly what you are going through. My daughter will be 4 in January and for the past 5 mo. or so has been doing the same thing.
She has been potty trained since 2 and 1/2.
Like you said, sometimes she's just to busy with playing etc... and doesn't want to go. We think some of it has to do with getting attention because she has a new little brother who just turned one.
We even ended up at the doctor to give a urine sample to make sure she didn't have an infection.
The doctor said some kids just do this.
We started a potty training chart and each time she goes on the potty she gets a sticker. After so many stickers she gets to open a present. (You can get several at the dollar store so you don't spend an arm and a leg) or maybe give her a couple of m&m's or some other snack she likes
after she goes
We tried sending her to her room when it happens but it seems to make her very mad. I read in a magazine that you should never punish your child for a potty accident. You should have them change themselves.
We started setting a timer for every 30 min. and this helps a-lot. Sometimes she says she doesn't need to go but I still insist she goes. And she does.
Since setting the timer, she is doing better:)and will go several days withhout an accident.
Good luck!
I H. this helps:)