My guess is that your weight fluctuation had nothing to do with your health, but with water retention. I've seen my weight fluctuate up to 8 pounds overnight before! Our bodies tend to retain water...
carats
In order for a fish to weigh itself in a passed tense, it would first have to travel back in time, weigh itself, then return to the present.
Apart from any doctors surgery or hospital - there are weighing machines in most shopping centres.
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