Here are some other suggestions...
Try altering your workout. Start bike riding, boot camps, or other exercise. Make sure you do weight bearing exercise like squats, lunges, pushups, etc. Your body might be used to what you've been doing and needs a bit of a boost.
Talk to your doctor. Something might be out of whack, vitamins, hormones, something else??? I found when I started taking certain vitamins, I started losing again.
Almeeker has a great suggestion too. I find when I eat too much meat I stop losing weight, but I still need other proteins to fill the gap.
It is really frustrating just trying to figure out how our bodies work on this road to weight loss. But, it sounds like you are healthy and fit, which is a great start to losing the rest of your weight!!