Teething pain or something else?

DD has cut her eye teeth and I have spent the past week and a half thinking that she's cutting her molars as well, because she's dribbling uncontrollably and chewing her fingers. However, she's also become very sensitive about her mouth - she screams and cries every time she tries to eat tomatoes or orange or marmite; we don't use any of the baby toothpaste any more and tooth brushing in general is a nightmare; she won't let us touch the inside of her mouth to check the teeth; pamol is a nightly necessity to get her comfortable. She has also recently developed really bad breath and had a small sore at the corner of her mouth (pharmacist wasn't sure that it was a cold sore, it went away pretty quickly).
Today I noticed that the skin around her bum (mostly on her butt cheeks and round the top of her thighs, not really close to her private parts) has little red raised spots - they don't really look like a rash but there are heaps of them.
She hasn't had the normal yucky teething poos that she usually has.
Is this all consistent with cuttig back teeth? I thought tonight maybe it's oral thrush, but have never encountered it before so have no basis for comparison. I will take her to the doctor tomorrow and get it checked I think, but wanted to know if anyone had experienced this with their kids?

oh gawd i hope your bubba doesnt have hand foot and mouth too....ellas has avoided the mouth so far but the other bubbas havent...apparently it is rampant in auck etc at moment!!! i know a kid who got it at church, another at a coffee group and now four from our DC and gawd knows where they got it from....and of course my bubba!!! symptoms sound similar!!! take 3-5 days to come out and once dots arrive they just burst out all over H F and M!