So, let’s just consider a light-hearted scenario (we needn’t ask too many questions about how such is possible):
So, now what do you do? If you risk showing people how you look, the government might get involved. You’ll certainly draw attention - and would the government want to experiment on you (as people always say governments would do such things)?
As an added bonus, it turns out that some alien tech/nano-DNA is still embedded in other small pieces of the meteorites - maybe, if you inform governments, you could use this as a bargaining chip to retain your freedom and voluntarily offer for non-invasive experimenting?
Not sure why the government would get involved, as if I drew any attention at all, it’d be that some tall weirdo happens to really be into some niche / extreme “furry” form of elvish body modification.
I know, it’s ridiculous. Everyone knows that you can get much more magic from DNA extraction by making it part of a blood sacrifice! And drawing a pentagram with alien nanotech is a real pain; the stiff tends to wriggle.
I’m not seeing it - you’re basically a tall (but not impossibly so) good-looking human with pointy ears, how would you not be able to cover that up if you want to? I mean, the tech hasn’t given you any powers or anything, just made you good at reaching the top shelf.