I'm sorry you're distressed about this. First order of business is to get your mind straightened out; as you mentioned, the stress certainly isn't going to help you lose weight!
Second, have you considered upping your carbs just a bit? Everyone responds a bit differently to different macro ratios, but I have read numerous accounts of people who had stalled out on weight loss while doing VLC, and managed to start losing again after upping the carbs slightly. Maybe it's worth trying out Mark's "effortless weight loss" range of 50-100g of carbs daily?
Personally I think your 70/20/10 ratio is a little extreme for someone without much weight to lose, and who isn't diabetic. Maybe try 60/20/20 and see how that works for you? That's going to be very difficult if you stick with salad as your main source of carbs, but would be quite easy if you added in a sweet potato, squash, or a piece of fruit here and there (these won't kill you, I promise, and they offer some wonderful micro-nutrients that your body wants ).