I asked the person scheduling appointments about emergency room stuff and whatnot, and she mentioned nothing specific, but just said if things kept going or got worse... Right now, I haven't thrown up for four hours! Yay! Uh, small steps....

And the nausea seems to be going away more without me throwing up, so I've been able to take in more liquid. And I even slept for two hours this time before waking up, so I am hoping the worst is over....