I was in a similar place that you were, I dropped 20 pounds following ankle surgery. Then a year later I dropped another 20 pounds by basically crash dieting for 2 months. Problem was that while the scale reflected a lower number most of what I lost was muscle. I then spent almost 2 years yo-yoing the same last 10 pounds back and forth and thriving on sugar, carbs, and caffiene.
I will be very honest that I have hit a full out weight plateau for the last 10 weeks, and throw the scheduled temper tantrum at the COD every Friday. However, I basically quit the massive coffee habit, knocked out the sugar, and find by not carb loading I have more energy. Also, when the pounds haven't been dropping off, the inches have been basically melting away, which according to COD and regional managers down here is unheard of!