Ignore the witch: it's WC's job to screw you over.

From just the few incidents you've described, any unbiased person can tell you're in medical distress. If anything, what I'm hearing from you is a tendency to minimize and/or doubt obvious - and serious - symptoms of TBI

As I said earlier, you will have to advocate for yourself. It's so obscenely unfair, but it's the way it is.