Anyway, this and many other dolls have been giving me grief.

The back of her head is stamped MATTEL 1993.
She is modded onto a MTM body, but her original body:

Her body, in the back, is stamped 1999 MATTEL Inc and she is made in China.
My guess is she's a Midge or Summer. Also, I'm pretty sure she has the Lara head sculpt if that helps. Its a standard Barbie sculpt of some sort.