I'd be cautious about trusting one of those bioelectric impedence devices for a measure of bodyfat percentage. I got one done recently and it was definitely off the mark. Your weight's on the high side for your height, but you're probably not 37.5%. You can rely on that thing for your weight, but not the bodyfat percentage.
Sounds like you just ran into the wall. I've seen it written about in many places, and experienced it myself. It's like the metabolic rate drops even further over time than the weight loss would indicate. It's accompanied by changes that I've had show up in blood work. TSH levels rise, testosterone levels fall, and other things. I've actually read a few things that recommend "diet breaks" to restore a maintenance state at the new lowered weight before cutting further. Any thoughts on this Rob? You're the expert on this stuff here, having actually journeyed into the lands of the super-shredded.