Hi, I am 36 years old F, got all my blood tests done, and found out the HB is low ard 8, Vit B12 is also low just 65, and so was Vit D, I hv severe period flow once in 3 months which lasts up to 4- 6 wk. Which is the main cause of low HB. I do hv PCOD n thyroid (125 mg dose) too. Please guide.

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