well she did get close. that a good sign. i had a similar thing happen to me. had a doe about 6 feet off. she tried to smell but the wind must have been in my favor or my scent theory works because she just walked off. just like you i was shakin from the inside out.
its very tough to hunt off the ground with a bow. i have never tried it. i would think my chances would be considerably lower than if i was in a stand.