dhope,
Have you asked your doctor about trying a different anti-depressant?
You will be surprised how a different med may help. Different systems react differently.
Since you were denied WC, have you contacted a personal injury attorney? If you can find a good slip and fall attorney, you may be able to get some financial help, at least eventually. Failing to sand and de-ice could be a negligence on the employer's part.
You will actually have better financial recovery under personal injury/premises liability law than under WC law.
Here is an attorney link
http://www.wainjurylaw.com/library/s...gton-state.cfm
You want to make sure an attorney has good knowledge of brain injuries.
My best to you.