Lexie, I sent you a PM also. Not to be an alarmist, but it's good that you're keeping an eye on the details. During my time working as a transcriptionist, I learned that as much as we'd like to think that the medical world is somehow more perfect than the everyday world, it really isn't. There are all kinds of mistakes and miscommunications. People can't be reached or don't respond. Being as involved as you can is really important.
You had also mentioned at one point that your former boss was going to be with you for at least part of your stay even though you didn't think it was necessary. I went into more detail in your PM, but I think it IS important that you have someone responsible and trusted to be your advocate when you may be too out of it or too tired to look out for yourself. Docs and nurses are human and one more set of eyes/ears/brain watching and communicating about what's going on is a good thing.