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The numbness your daughter is suffering from is because of multivitamin deficiency
and even calcium deficiency
ask her and she may be having body pain also.Please ask her to start on some multivitamin and calcium and she should feel better in few days but tell her to continue it till 2-3 months .Also if possible get a CBC blood test done to find her haemoglobin
and if that is low tell her to start with a Iron +folic acid tablet
.She will recover from this soon.