There is no way to describe a new sensation
Other than with what you have as context.

For example:
I don't know the feeling of missing a limb
Nor do I know the feeling of having one too many.
But given how my mouth has changed,
I can tell you that I feel like ive lost a part of my body.

But then I lick and tear
And I brush and scrub
And I stare at myself in the mirror
And it feels more like I want to scream
Just to get something out.

And it feels like there's another part to my soul
That I had not seen before,
A part that just doesn't belong,
An excessive ligament to dispose.

So I scrub. And pick.


And I spit the crimson in the sink.