To Interconnected:
Great plan you've got here. Hope it really works out for you. Here's the thing about there being no medical record of any of this:
Try as you may, you can never really be sure that no record of any kind (especially partial though disjointed ones) will not exist somewhere at sometime. That's because of the Information Age in which we live, Hon.
For eleven years, I worked as a medical transcriptionist for a major hospital. These are the people who actually CREATE the medical records. What I learned in over a decade of doing this kind of work is that today's technology is ... A-M-A-Z-I-N-G ! "They" have info on all of us that you wouldn't even believe. Moreover, a while back when The Neoconservatives (Dick Cheney and company) were still in power, they passed The Patriot Act and much other legislation that, for all intents and purposes, puts us in an "Information Age Nazi Germany" meaning that they can (AND DO!) gather scads and scads of info on and about ... all of us ... without your consent ... without your knowledge .... and without concern about what you would think about it anyway. Is Big Brother watching us? You bet your sweet bippy he is, Babbalou! And, that's no lie!
Go to any shopping mall, big-box store, even many highways (I kid you not!) these days, and, "Smile! You're on candid camera!" I'm totally serious. Look, if you have one of the better smartphones on the market today, you have a camera on it the size of a pencil eraser that is just awesome.
There are private cameras much smaller and much better than that. Business and industry uses them all the time ... everywhere. The government (Read The Military, CIA, FBI, BATF etc., etc., etc. ...) has technology that you just wouldn't believe. No kidding. And they use it ... all the time. Anyway, ...
If you can actually go through the whole process you describe here with no record whatsoever of any of it being created anywhere, you will have lucked out bigtime. That's the bad news.
The good news is that only partial records of this, that and/or the other act, process and/or procedure germane and apropos to your transition MAY exist somewhere but, by itself, will not mean much to anyone. That being the case, it would take the will, the skill and the know-how to track it all back to you. That's not likely to happen, really. Somebody would REALLY have to want to know, be willing to pay to find out and hire the right people to piece it all together. Again, that's not likely to happen, really.
Also, you can always take the stance, "So what if they know?" Really, you can. That's totally up to you though, of course.
I'd say, "Don't worry about it and just do your transition." Just my opinion. I might be wrong about this. Just trying to help though. Best of luck to you, Hon. Hugs!