I quite like quark, but it's very divisive in group! I've had a few stomach pains at the start, just thought it was my body going into shock from all the veg.
Sorry to hear about your cold basin. I know what you mean re weigh ins. Some people at my group don't eat all day (and it's a 7pm weigh in!) as well as getting weighed practically naked! I know I can fluctuate a couple of pounds anyway, so trying not to get hung up about weekly weight and look at it over the month. As long as it's a downward trend it's all good.
I also feel like I've eaten loads, but I put my intake through mfp for a couple of days just to make sure (I know, I know!) and it turned out that whilst I was eating a lot, my intake was rather low - probably lower than I've had on when I've been on previous diets.
I must admit I'm also a bit of a speed skipper with breakfast, unless it's the weekend and I've got time to cook something. I do snack on fruit though.