I had a great charity shop find today... a lovely Coast dress, quite fitted style, shift, wintery that means I can wear it now then as this is England! But....it's an 18. I'm not an 18, and it's a perfect fit. I could not have fitted into smaller, though. I'm a 14 bottom half, and because I'm 38DD top half, I tend to be 14-16 up top. So.....just wondering if I've gone up a dress size without knowing it...or - are they (Coast) generally true size, or on the small side?