few months ago I noticed my 2 year old lips would go blue after having a bath but since end if October on way to nursery she always has blue lips (obviously I wrap her up warm) today she woke up from a nap with blue lips too. I'm a bit concerned as don't know what it could be she's quite petite but has been told she's got a slight heart murmer bit can only be heard when she lies down flat. thank you x