The only thing I can think of that might have something to do with a TBI and hepatitis C, is that if you are experiencing high ammonia levels and encephalopathy, you might be more prone to injury. I hope you are ok now.
What is a TBI and why do you think your liver is involved?
Also we here are not doctors we are a support group of patients and care givers dealing with the effects of hepatitis c and the treatments and tests for our illness.
Do you have hepatitis c?