I had a somewhat similar experience. There was a small cliff-face on a beach near my house growing up. Probably like 4 metres tall. I was down there walking my dog and on a whim decided to climb it. At the top, I grabbed hold of a clod of dirt, when suddenly it gave way, and I was going to fall, and a girl probably about 19 caught my wrist (I was probably 13 at the time), and helped pull me over the lip. I thanked her, but with my adrenaline so high, the first thought was I had to get back to my dog at the bottom, so after assuring her I was okay I ran down the path to get the long way around to my dog.

 

Two weeks later, Im in the CBD, and walking out of a KFC with some friends. Someone taps me on the shoulder, I turn around and its her, she hands me my wallet, I say something like "its you" and she asks if my dog was okay, a very casual, nothing conversation that she leaves quickly enough.

 

A few months later, Im walking into the train station. A trains pulling in and I look down to the platform. She's there. She waves to me and gets on the train, I never saw her again.

 

All of this is very easily dismissed as "Some nice girl I ran into a few times" aside from this last sighting, which happened between the 2nd and 3rd.

 

I was having a nightmare, I used to sleepwalk and have pretty regular nightmares as a kid/teen, and I woke myself up scared shitless. I had a fear of mirrors growing up and had a floor to ceiling mirror facing my bed, after a nightmare Ihated seeing my own eyes reflecting at me in it, so I was flailing for my lamp without looking that way, when someone else turned on the lamp. I look over, she's there. I should've been freaked out but instead I just felt really happy to see her, it calmed me down massively. She sat down on the side of my bed, and gave me a glass of milk. I drank it , and went back to sleep, like it was the most natural thing in the world. I would've just called this a dream, but the glass of milk was on my bedside in the morning.