No - but seeing your post makes me wonder about my dd!
She had what i thought was a 24hr sickness bug about a week and a half ago, but ever since she has slept during the day (which she grew out of sometime ago) and actually asked to go to sleep (never done in her life before) most nights, and hasn't been eating much at all. And yes drinking lots also, no bad breath that i have noticed though!
I had put it down to still "getting over" the sickness bug.
I hope thats all it is for you dd also, but does sound wise to take her to GP, i think i will if my dd goes on another week like this.
Hope she gets better soon xx