Ah well. I used to donate a lot when i was at university, probably didn't help me much really as it drove my ferritin down really far, and in a young female that isnt so wise to do as it starts messing with other systems and wreaking havoc.

Still, dont go more often than they say, and get your ferritin checked (not just haemoglobin, but ferritin, the iron stores in the body), and you'll come to no harm, anyway!