The hospital were having a rare attack of organisation - despite losing my notes, again, I actually saw a doctor within 15 minutes of arriving, and got given morphine + an antiemetic 15 minutes after that. Dozed off in a lovely haze while they did blood tests. As there was no sign of infection and my liver function test was normal, they let me go home. I've had a fairly pleasant, if spaced out, day.
Now the morphine is wearing off, and I'm starting to feel very very sick again :/ If it gets that bad again, I'll have to go back to the hospital and they'll want to keep me for a few days. Don't want it to get that bad, damnit.