Some more positive notes! I am making some progress on the IV feeding, although it is very slow. They think that my weight (actual body weight, not fluid) is probably in the 61-point-something kg region. I was around 60kg when I came in.
I then did a grip strength test yesterday with the dietitians, and it was hugely improved; my strength and energy levels are much higher.
Finally, I also managed to walk 3x the distance that I could manage when I first came in, and I am not falling over. This was one of the main problems I was having: I would fall while walking and just lose my balance completely all the time, so I wasn't safe to walk on my own. There is improvement!