Crystal/Glass bones

Idea:

A character has never had a broken bone in her life.  She hasn't ever had an x-ray taken.  She doesn't think much of it.  And she's been through the airport plenty of times, with no problems.

But this time, she gets into line for an x-ray scanner.  And the operator thinks something is wrong.  They think the machine broken--because they can't see a single bone in her body.

After an escalating scene of calling in a technician and a manager, she is sent through one of the ordinary scanners--but is stopped when the other machine works with someone else.

And eventually she's taken aside, searched in detail, and refused permission to fly.  She goes home, shaken.

No longer able to fly, and suspicious of what's going on, she sees a doctor for made-up reasons and demands x-rays.  Once again, no bones show.  A CT scan, however, shows she has something like bones, but made of entirely different material...

A week later, she goes back to the doctor's office.  He has a new secretary who claims they have no records of her being there.  There are no billing records either.  She shows a bill, and the secretary asks to borrow it.  She never returns to the desk.  She is unable to see the doctor, and the doctor is not accepting new patients at this time.  A staff member pulls her aside outside, and tells her that something is wrong, and not to come back--but refuses to say anything further.

The airport calls with an apology, and tells her she is allowed to fly again.  They reimburse her flight at 150%.  Since it's for business, she mentions little of it to her boss, and flies to the same city as planned before.  When she goes to the ticket gate, she is given a VIP pass and does not pass through any metal detectors.  This is slightly more disturbing than before.

Several months later, she has put together some things: never a broken bone, despite some rather rough falls.  She has never really bruised either, she realizes.  She has never had a cut, bruise, or abrasion.  She has torn clothing, though.  She finally has courage this evening to try something.  A pinprick, she decides.

The pinprick hurts.  It draws a small amount of blood, but that's it.  It closes immediately.  No continued bleeding.  She has given blood before.  She goes to give blood again.  She is mysteriously on a no-donors list.

She checks her vaccination records.  They seem normal.  She walks into another doctor's office, and takes an impromptu appointment.  She finds out that a new law has been passed requiring a pharmaceutical approval for x-rays, and her SSN is refused an x-ray.  He apologizes, and after she tries to insist he shows her the door.

She tries more and more severe pricks, until she has escalated it to a knife.  She cuts herself, and blood comes out, but it is as though there is no cut as soon as the knife is pulled away.  She is freaking out at this point.  She tells a friend, who laughs at her and tells her she is crazy.  The friendship is severely damaged.

She takes a meat cleaver one evening and dares herself up to a severe chop.  She whacks it in, and feels it hit the bone.  The pain is excruciating.  There is blood.  She scrapes the flesh up, filleting her own arm.

The flap of flesh folds back.  There is no bleeding.  It's like looking at a bloodless cadaver arm.  But she sees the bone.  It's like bluish crystal.  It has no nick or scar from the knife blade.  The pain subsides, despite the exposed flesh.  She taps the "bone", and feels it as if she were touching skin--ultra sensitive.

She folds the skin back.  It seals as if nothing had happened.

She checks herself into a mental asylum.