Hi there,
I had the same sort of doubts as you about who to tell and whether people would understand and in the end I decided only to tell my husband, Mum, Dad and brother. I know this may not be the choice of a lot of people but because i am having the band I feel that my weight loss may be slow and I dont want people looking at me all the time to see if I am loosing weight or to have to explain myself. I think who to tell is a really personal chioce and depends a bit on your personality, I am quite shy and private. I think I may tell people at a later date (like when I look like kate Moss).
Its so nice to read about everyone elses experiences on here though, it makes you realise you are not alone.