I completely understand how frustrating it is when you stop seeing results! I am there right now and just started making some changes to hopefully kick-start my weight loss again.
I have read through all of your posts and quite frankly I really don't think that you are eating enough to sustain the amount of exercise you are doing! If your body doesn't have enough fuel, it will go into starvation mode and hold onto everything you have. I would suggest increasing your calories, limiting sugar and sodium, and making sure that you are drinking lots and lots of water!