Hiya
The one thing I can think of is (if all else is tried and tested) maybe because of your intense training, you might need to up your carbs to 25grams. It sounds like you are doing a lot of muscle building too which weighs more than fat...
Otherwise, it might be a thyroid, insuline resistant sitution.
Have you posted a daily menu of what you are eating. Maybe someone can spot something that might not be obvious to the rest. I remember one week I wasn't loosing and doing everything by the book, and didn't loose. Then I found out my mayo (which I was eating with everything) had starch in it.
Don't give in.. How you feeling in yourself and how are your measurements looking. One woman dropped three dress sizes and her scale stayed the same.