Update - I weighed myself at home and came in at 170.5lbs. YAY! Ok, you may not think that's a yay, but I do b/c it means that the readings that I've been getting on my home scale are pretty accurate. I'm not sure if I'm heavier b/c I've packed on muscle, or simply b/c I'm weighing in sooo late in the day. However, I will weigh myself 1st thing tomorrow morning to see if there is a difference. Also next, Thursday I will weigh in at home b4 I go to work as well as at work before I eat or drink. That'll further help me to determine if there is any difference in the scales and then to later account for it.