I know how you feel! Those doctor scales suck! I went out and bought a new scale after my old scale was so far off. I took 5 pounds from my weight loss - pooh! I did take into account though, my clothes, shoes, and time of day. I recreated it when I got home, and noticed only the 5 pound difference, not the 9 pounds the doctors scale said. Go by what You weigh at home, naked, first thing in the morning (after...). What do you get? That's the number I would use, not some number you might see once a year! You are doing great!!!!!