I am getting BW done again soon and wondering if I need to donate blood more often than every 8 weeks. At the same time, I don't want to donate more than every 8 weeks. Those needles are huge and 6 times a year sounds excessive to me. But then I was wondering if I could even donate more frequently anyway? In my area I have United Blood and Red Cross. I am wondering if they report to some central system. So if I don't wait 8 weeks with United Blood and go to Red Cross, will they see that I donated with the other company and deny me? Has anyone donated more frequently than 8 weeks?

Also, the double red cell donation is like every 156 days or something. But seems I would build up more RBCs than I want in 156 days. Well, I guess I shouldn't think about it too much until I get my new blood work.