First, Congrat's on your success! That is amazing! As for jump starting your loss again....have you tried mixing up your carb levels and your protein levels? For example when I have a stall and I have been keeping my carbs down low...then I eat more carbs for 2 days or so and it sometimes will jump start my loss again. If you have eaten more carbs lately then cut back and up your protein levels. Just an option that helps me sometimes.
Congrats to you again...you are inspiring.