What's a healthy weight for a woman who is 5"9?
http://www.disabled-world.com/artman/publish/height_weight.shtml For a woman who is 5'9 should be 150 pounds. That is the healthy weight for that height.
I'm 5'8 and I've heard the proper weight for me is around 130 lbs, so yours is probably 130-150 :)
About 170 lbs