'sitting on pins and needles'

Posted by Ward Fredericks on January 15, 2004

Just sent an email message to my favo(u)rite Aussie and used the expression 'I'm sitting on pins and needles'. In the US, that means a state of some concern over the future outcome of some important and concequential set of circumstances. I wonder if this is an expression used elsewhere to discribe a state of apprehension or if there are other phrases that represent shorthand for this feeling. Thanks to all.