Am 6wks and my balance has been funny when I go down stairs. It's been like this since just before I got my bfp. I start to walk down and have to really concentrate so I don't miss a step or tumble: it just feels really weird-like I've lost my sense of proportion as to how big the steps are. I know pregnancy can mess with your balance but it seems very early for that. Any ideas? Am fine walking around on the flat!