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She can see a homeopathic
physician for this condition (thyroid and menorrhagia
). Weight loss
is a gradual process involving a balanced & planned diet, acitivity & exercise .
No its not normal to have bleeding for 3 weeks. Thyroid discorders do lead to irregular menses , heavy flow , sometimes amenorrhoea etc.
But if she is taking medication and the thyroid condition is under control, menses should become normal. Further investigations are needed, and may be a second opinion
from another physician.