rochbo,
Read the TBI Survival Guide at
www.tbiguide.com. It may help you better understand your symptoms so you can tell your doctor. Sounds like she uses 'rule of thumb' time lines for recovery. The Ontario Neurotrauma Foundation guidelines may also have helpful information
http://onf.org/documents/Guidelines%...20Symptoms.pdf
What diagnostics and treatment have you had with your upper neck? This is often a contributor to prolonged symptoms.
Your difficulties after the road trip suggest upper neck issues.
My best to you.