Still no sign of the little bugger. I think I must have flushed it out of my eye and lost it somewhere in the apartment. I can't see it anywhere in my eye, and I can't feel it.
The advice nurse told me that it was okay to go to sleep, that a soft lense will work its way out if it is, indeed, in there.
So the Mystery of the Missing Contact might never be solved, unless I find some dried out contact in the carpet one of these days!