weighing 160 or so, I would say that your calories are too low. try more like 1650 a day also look at WHAT youre eating. you are training 5 days a week and cardio 2 times a week, you simply cannot expect to have any results when you arent getting enough cals per day.
You could be like my mom maybe. Shes built like a tank (for a woman) but she weighs like 170. Shes always worried about what the scale says. Stupid scales