Threat vs non-threat, possibly. However, when in pain, it's doubtful whether that would kick in.
Deer develop instincts. They do get to where they know whether a person is a threat or not. However, I don't believe she "knew" you were trying to help her. The odds of that being the case are so low they're not even worth mentioning.
Let's see, I'm 54, started deer hunting when I was 9, so it looks like I got ya!!!! Just kidding w/ that, of course!!
Oh, and I think you're giving animals way too much credit!!! Most people do, so it's not surprising.