Yep I did. Twice actually.
First time (1964) doesnt count cos I was a little girl (about 4 years old)
Second time I was in my early twenties and having hit the buffers with the medics once before when in 1976 they had refused me puberty blockers, i decided I would take matter into my own hands and fullly transition before I even saw a doctor - thus making it very difficult for them to say no.
As it turned out I (cough cough) managed to get some hormones a bit sooner than I expected, but that's another story and not one I could condone in these more enlightened times when actually, compared to the dragons we faced in the 60's and 70's, todays doctors are FAR more reasonable. I eventually saw the doctors when I had already done a year, which had been fully documented, and thus on first visit collected not only hormones but also a refereral for surgery!
Back in the old days some doctors were sadistic to the point of disbelief taking great pleasure in making the patient cry, and taking them right to the edge of endurance... thankfully now things are much easier for you all, but back then having been bitten once I was in no mood to let them have a second chunk. Thankfully it worked too!