I had a week of immense stress and no routine earlier during the summer due to a significant upset and lost my appetite for a few days. All is better and there is certainly nothing wrong with my appetite, but I have found I can very easily not have breakfast (which used to be quite a carb-heavy cereal affair), not feel hungry until lunch time and I have lost 2 stone in the last 2 months or so. And 2 dress sizes, more importantly 
I am eating well and healthily and am as active as I've always been. Maybe slightly more so as we now have a dog who needs walking whether I want to or not…
So, is there anything wrong with this?
In my eyes all I am losing out on is starchy carbs and sugar 