Sleep Paralysis Or Something Else?

On December 28th, 2009 I had a biopsy of a thyroid nodule to rule out any chance of cancer (thank God it came back benign). Just about a week and a half ago (the first week of February 2010), I noticed that a small scar or bump had formed in the same spot as the biopsy. This didn't strike me as abnormal as the doctor did inject me about 5 or 6 times with numbing medication, and then he took about 3 or 4 draws for the biopsy. However, last Sunday, February 14th, I had something strange happen.

With my spouse at work, and the day to myself, I had made plans to get several things done around the house. Instead, however, I became very, very sleepy. Not wanting to take a nap, I decided instead to spend some time listening to the audio version of the book, "The Lost Symbol", by Dan Brown. I got through about one chapter of the book, and fell asleep with the audio book still playing. A few minutes later I woke up, and realizing what had happened, I re-wound the book to the chapter I started at, and started listening again. Minutes later I found I'd fallen asleep again, and repeated the process. This went on about 5 or 6 times, until something changed dramatically; I didn't just fall asleep, I became paralyzed. I was either experiencing sleep paralysis, or something quite different.

Lying on the couch, I found it nearly impossible to open my eyes, and my body felt like it was encased in lead. To my right, directly behind my couch came the sound of voices. Thinking there was someone in my house, I thought to myself, "I need to wake up. I need to get up!", I struggled to move, and felt myself getting up off the couch, but when I opened my eyes and looked I was still lying down! This happened several times.

Then, all of a sudden I heard a loud "bing" sound, and the lights in the house brightened, and my eyes flew open; I was wide awake. I sat up on the couch and thought, "what was that all about?". Looking over at the clock I realized over two hours had passed.

As I rubbed away the sleep from my eyes, and massaged my neck to work out a kink that had settled in, I noticed something very strange. The bump that had been in the area of my thyroid biopsy was gone! It was there before I started listening to the audio book, and now, just about 2 hours later it was gone. What happened to me?

Thinking back on the experience as I write this, I try to remember what the voices were saying, but I can't. I'm certain they were not part of the recording, as they sounded like they were coming from inside my living room. Is it possible that I had some kind of visitation? If not, how can I explain the sudden disappearance of the "bump" over my thyroid biopsy area, the "sleep paralysis", and the disembodied voices?

One other thing, I'm scheduled to have major surgery on February 25th to have part of my thyroid removed, along with a mass that has formed behind it. Do you think this experience has anything to do with that? Personally, I'm beginning to wonder if the doctor is actually going to find a mass when he opens me up.