So basically everything that I was worried about when I went to the doctors turned out to be non-worrisome. Due to the timing of this bout of cramping daily, my doctor thinks that it was a cyst, and it appears to have gone away on its own. Plus one for me!
I finally got around to talking to my doctor about my tendency to pass out and she thinks that I have Vasovagal Syncope. This basically means that the nerve that lowers blood pressure occasionally goes overboard and makes me dizzy, sometimes all the way to passing out. It's not really a "treatable" condition, and is more "learn to live with it". As my doctor put it, "you've been dealing with it for almost 10 years, so I think you have a pretty good idea how to handle it." But we talked about various things that could trigger it and how to prevent it more readily.
I also had a couple of other concerns, but they wound up getting cleared up pretty easily. I'm just waiting on the results of some blood work to confirm the vasovagal syncope.
All in all, YAY!