Twinkle, sorry, I didn't even think about the PCOS part. It probably is more of a problem for you than most young females. I think Kate is right - donating blood regularly is the best thing you can do. And make sure you have your iron tested regularly.

ETA - Feeb, if you can't donate blood but your iron levels are high, you can have a procedure in hossy which removes some blood. Just like giving blood actually but the blood isn't reused.