She's 22 months. I posted an update in the attachment parenting board, in a night weaning thread that I found.

Here's a copy and paste of it:
I'm so glad I found this post! I used to post on this board a lot, but when I started school I had to leave JM in the dust...
Tonight will be day four of night weaning for us. I had been thinking about doing it for quite some time, as I seem to suffer from nursing aversion, but only at night. It's really strange, but when she nurses at night, my skin crawls, my stomach flips, and I just want her OFF of me. It doesn't help that she still wants to nurse every two to three hours at night.
I decided to just give a go three nights ago, she was insisting on comfort nursing, and I felt like I was losing my mind. I told her that milk went night night, and she LOST it. Day two wasn't much better... She YELLED and stood on the bed for hours, until she finally passed out, and then it would start all over again. I wasn't sure that I would make it through the night, but I did. Yesterday I talked to her at length about how milk goes night night, and that she could have milk as much as she wanted while the sun was up, but I could tell that she wasn't buying it. Then I read that a mom had told her kiddo that "milk had boo boos" when she was weaning, and thought that might work. My mom had hernia surgery this summer, so DD knows about boo boos and that they restrict things (my mom couldn't pick her up due to the boo boo belly button). So, I told her that milk had boo boos at night time and that she could have a bottle of water if she needed it. Yes, I introduced a BOTTLE at 22 months. Anyway, it worked! She slept for EIGHT hours last night, something that she has NEVER done. She woke up at 6am, and I cried when I told her that milk went night night, but when I explained that milk had boo boos she said, "oh. ok." She played with the bottle for a bit, and layed quietly with me for an hour until the sun came up. I made a big deal about night being over, and that she could have milk again, and she was SO happy.
I'm not sure if our success will continue tonight, but right now I am on cloud nine!