A bracelet is not difficult to get, you can get one on Amazon for around $12-$14 and have it engraved with literally anything you want.
I have one, but I carry it in my pocket instead of wearing it. It's engraved with:
Mutism (in case I go selectively mute during a shutdown)
Panic Attacks (in case I'm having a panic attack and can't breathe, and thus can't talk)
Autism (pretty useless because nobody knows what to do with "autism", but in my case there were 3 lines that they engrave so I might as well have something in case I'm murdered by the police, something that says "he was trying to communicate his disability")
That's what it says on the front, and on the back is my address and my father's phone number (emergency contact).
My point in saying all this is that you can certainly benefit from a bracelet, and at $12-$14 why not have one? Remember that your audience would have no idea what to do with an engraving on the bracelet like "Autism" or "Meltdowns"; you'd need to think of something to put in the lines of engraving that communicates what you need. Maybe even a short message.
I found one with 5 lines at 25 characters each, front and back. Yes it's a men's bracelet, but the women's bracelets are tiny and can't hold as much info. If you can reckon a way to communicate what you need if you lose the ability to communicate effectively, it could be a lifesaver.
Here's a link to the bracelet I'm talking about if you want to take a peek at least:
https://www.amazon.com/d/Office-Pro...310357&sr=8-14&keywords=medical+bracelet&th=1
I know, Amazon is evil, and the Krimea River is in Russia.