Its not water weight - that would give you fluctuating readings, and if you were consistently short 14lbs of body water, you would probably be dead, not complaining
Easy way to confirm this is to check the colour of your urine. If its dark (anywhere from Iron Bru to black tea), you are dehydrated. If its light yellow or clear, then you are fine.
If you have lost 14lbs in 3 weeks, then you are in starvation mode. No way can you lose more than a couple of lbs per week without catabolising muscle tissue.
I notice that your recent posts have related to oestrogen blockers and pro-hormones. Am I right in thinking that you have been restricting your eating and trying to use these things to prevent muscle loss?
If so, welcome to the world of BS supplements.
If not, then it doesnt matter- either your 1800 cals is not enough to cope with your physical requirements (whats your training regime these days?), or they are nutritionaly defficient/unbalanced.
Of course the other possibility is that your scales are faulty.
Home BF scales are notoriously temperamental, and electrostatic testing has strict protocols to get an accurate reading anyway.
Follow these steps to maximise consistency in readings.
1. Put new batteries in scales
2. Keep scales on the same hard surface, in a constant temperature
3. only use them once a week, on the same day of the week, at the same time of the day, wearing the exact same clothes (or lack of them).
4. personal protocols: No food or caffeine for 2 hours before test. water only up until 1 hour before test.Nothing at all in hour before test. Empty bowels before test.
Having done all that, the readings still wont be accurate
, but they will be comparable test to test.