Sorry you feel so icky Apes. It's not fun. It's because of the extra blood volume. The other suggestions are fantastic. Make sure you keep your fluid intake right up there and if you do add salt, use iodised salt. I'd definitely recommend having a chat to your MW about what's happening to see if she has any suggestions. The good news is your iron levels are ok, but I'd make sure that they keep monitoring it in case it does dip down. My BP was usually on the low side with both my pg but my MW was never concerned about it. Hope you feel better soon xxx