Hey @jayjay007
That sounds really crappy and counterproductive.
Some groups recommend blind weigh ins where you don't know the exact number but they give you the gist of whether you're on track or not. Helps to keep from obsessing and creating disordered eating patterns.
Also, you might not know this (most people don't) but it's actually pretty dumb for women to compare their weight to the previous week. Like, REALLY dumb. Your weight naturally fluctuates throughout your cycle. You are the lowest a few days after your period starts, then it generally goes up, down, WAY up, then back down to the lowest point again. That happens every month. It's only sensible to compare your weight to the same point in your previous cycle. Usually the lowest point (just after the start of menstruation) will give the most accurate reading - once a month weigh in. But if you want to weigh in weekly then just make sure you're not comparing it to last week but to 4 weeks ago.
If you're losing weight pretty quickly or you naturally have small fluctuations this effect will be camouflaged by your overall weightloss. E.g. If you are consistently losing 0.5kg (of actual fat) a week your scales might read:
69.0, 68.8, 68.1, 68.2, 67.0
However if you naturally have more significant weight fluctuations or you're losing weight slowly compared to your fluctuations the scales might read something more like:
69.0, 69.2, 68.3, 69.4, 67.0
Even though you're making exactly the same consistent progress as the other person, it's hidden by your body's natural tides.
The problem with this is if you're weighing in weekly and you're not aware of this effect you're going to get really discouraged when you're trying so hard and yet APPARENTLY going backwards! Especially because the time when your weight is likely to be at the highest fluctuation is also likely to be right around the time when you're PMS-y, emotional, and actually need extra food anyway (scientific fact - the week before you bleed your BMR increases and you need about 600kj extra per day), so it tends to trigger a 'what's the point' binge.
Just thought that might be useful info for you, it certainly helps me. Also a longer time frame between weigh ins helps me to focus less on the individual 'mistakes' and more on the overall picture. A burger here, a bag of M&Ms there, in a week that will completely derail your progress but in a month, if you're doing the right stuff the rest of the time, it's actually not that big of a deal.
I am BloodMagic and this has been your weekly Period Public Service Announcement