Our expert says:
This is not good for your metabolism - 4-5 kg's maybe but 20! Please do the bipolar questionnaire on drhansdreyer.com for me - this could be a sign of a serotonin imbalance and you may need to use a stabilizing medication to prevent these swings. Losing the 21 kgs aren't so bad if you are overweight but I am sure you hate picking it up again!
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