Hi Vix
I had the same thing happen to me at the end of last week, I woke up on Sat am (7wks) and had no sore boobs, my appetite was back and I no longer felt at all queasy. Panicked for a bit but people said that symptoms come and go. This week my boobs have hurt a bit more (although the midwife says it's normal for them to settle down) and I've had waves of feeling a bit sicky, this morning I was retching for the first time - annoyingly it made me happy because I feel more comfortable when I have symptoms!
Try not to worry, I am sure they will be back and if you have anything else which worries you just get on the phone to your midwife or NHS direct or something.
Best of luck!
xx