excellent weight loss peachy. and congrats on being only overweight now!
50lb is about the size of a 4 - 5 year old child. 55lb is the weight of a sack of potatoes! You are right about it being hard to visualise. It hit home for me when I had lost almost 3 stones as that was the weight of my 3 year old at the time. If I try to carry her I can only manage a short walk, but was walking with that weight under my skin for 10 years!