I had similar issues with my daughter. At age 3, is she able to communicate enough that you can ask her why she doesn't like the toilet? I know my daughter finally told me that she was worried that part of her was coming out, and we were flushing it away. Using a Potty chair for a while let her be reassured by seeing exactly what had come out of her before flushing it away (I guess she had trouble with that if it was in water in the toilet.) She still did exactly as you described at a later date (staying dry for days, then completely refusing toileting no matter what). I found NO effectiveness with pullups with her (though they work for some kids); to this day, if I were to put her in a pullup she would pee and poop in it, even though she's been trained for almost a year! Basically, my reaction was reverse psycology. I put her back in diapers, and told her she wasn't allowed to use the potty until she was 3 (you may want to choose a landmark date a little farther away). This gave me a break from the frustration and made using the potty a priveldge, not something I was trying to force. Meanwhile, I would mention every once in a while the things potty-trained kids can do (preschool, sleepovers, etc.) and how pretty a pair of underwear at the store or at home was, and made sure she noticed every time I used the toilet. I said all this in an offhand way, not asking her anything or expecting any response, more just planting seeds. Once she turned 3, I asked her if she was ready to start wearing big girl underwear. I told her that the rule was, when she decided to wear underwear she had to use the potty EVERY time, because (name the character on the underwear) did NOT want to be peed on, and would go away and not let her wear them if she peed on them. I made it totally her decision when she was ready to start wearing them again, and made her completely responsible for the results. This gave her the control she needed, and she decided to wear the underwear a couple of weeks after she turned 3, and was completely potty trained within a month. I hope this helps. Good luck!