No, you didn't drop five pounds of lean mass. For one, you're dieting and training properly. For another, you didn't get dexa tested - averaging three shitty estimates doesn't give you one GOOD estimate, okay? I'm a statistician by education, this is my shit and I can assure you, there is no way you got a good read unless you got a dexa. Now the third point is that you're dieting and thus glycogen depleted. Glycogen shows up as muscle mass when you test, because it's in the muscle and it holds water. Carb up, and I guarantee you'll test out as leaner and more muscular on, say, a BIA/Tanita.
So what do you do? Assume you've got 140 lbs of lean mass. Trust the process, don't diet too hard, and diet down to 156 lbs. Plan to lose no more than a pound a week. You'll look great, you'll see.
So what do you do? Assume you've got 140 lbs of lean mass. Trust the process, don't diet too hard, and diet down to 156 lbs. Plan to lose no more than a pound a week. You'll look great, you'll see.