I am 5'6" and i weigh 115 lbs and i don't mind losing 10 more pounds.
When you are obsessed, there seems to be no limit. See, after my third baby, an year ago, my targeted weight was 130 lbs... But when i got there, my weight goal changed from 130 to 120... and now, even at 115, i would be more than happy if i will lose 10 more.