"Give Blood But you may find that blood is not eno

I have to get my bloods tested every five weeks to try and find out what is going on with my system and why things aren't working the way they should. I don't mind needles, I have five tattoos, but I would love to be able to give blood but unfortunately I can't because I have to be medication free for at least four weeks and due to various reasons I have not been able to achieve this but it is going to be my goal for the new year, to be med free and give blood.