So the difference between eating level and estimated TDEE is 273-423 calories daily, so you should be seeing 1 to almost 2 lbs every 2 weeks loss, unless still making body improvements from the exercise, but it sounds like not with no inches lost.

So first, what level did you select for Activity level?

What BMR is your TDEE based on, meaning Katch BMR using bodyfat %, or what other method.

So either you are eating at or near TDEE right now, though you should see inches drop as lifting should be causing great improvements eating at or near maintenance.
Or you are still eating at to great a deficit and body is too stressed to raise the metabolism to give you a deficit, or not much of one.

With eating so little for so long, did you ever eat at estimated TDEE?

The fast gain and loss shows water weight, beyond that, nothing it sounds like basically.

And have you spent 2 weeks weighing all food being eaten, to see how good or bad your normal methods are?

And what size deficit did you take? Should be at 15% and then 10% with 10 lbs left to lose.

And are the lifting workouts really heavy for you? Body feels no need to improve if you aren't overloading it.

So you might want to reread the stickies for the group, if you missed the metabolism reset you may have missed some other info.

Reset is removing the diet stress from your body for a period of time, so hormones can be reset and metabolism can come back up.

Might use this if your activity and exercise needs tweaking to find better TDEE, that may be inflated, or very deflated.

http://www.myfitnesspal.com/topics/show/961054-spreadsheet-for-bodyfat-bmr-tdee-progress-tracker