Ok, that's where you went wrong. There is no point in lowering calories if you're still losing weight. It looks like you just followed a linear decrease in calorie consumption. You went too low and it wasn't necessary to do to begin with. You only need to decrease calories when you hit a plateau, and even then lowering calories isn't always the answer.
Increase your calories by 200-300 for a couple of weeks and see if that makes a difference. If not, then increase it by 200-300 more. If you go too low, then your body will try to hold on to the very small amount of calories that you're taking in and store them as fat. You'll end up losing a significant amount of muscle mass in the process.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.