What!???? Short and curvy is BAD? This is a newsflash to me! I'm also short and curvy and I consider it a blessing! I agree with Nola in many ways.
Also, that 30lbs will make a HUGE difference. If you want reference pictures, I took these from mybodygallery.com:
This is a 5'2 girl with an hourglass figure at 157:
http://www.mybodygallery.com/img/1866/1.jpg
This is a 5'2 girl with an hourglass figure at 110:
http://www.mybodygallery.com/img/4/142.jpg
There's a pretty big difference. Not that either girl looks bad, I think they both look great! If you're happy with your current weight then stay there, but if you want to lose the last 30 then do it! Weight loss is for you, so do whatever makes you happy. I showed you the pictures so you can actually see what a huge difference losing 30lbs at such a low weight is. I think that going from 130-110 is probably a more drastic change than going from 250-200.