Welcome to this forum. Wow...I'm so sorry to hear all that you've been through. Telling you that 2 years to heal from a TBI is a "short" time frame just seems ridiculous. And I agree with you...as a non-medical person I would assume someone who had been ejected from her vehicle following impact with a Mack truck should be screened for head injury. Geez.

Did you have any rehabilitation for your TBI?

There are three things that seem to get missed very often for MTBI or TBI patients:

Ambient vision system
Vestibular system
Hormone/Adrenal/Pituitary systems

These three are relatively easy to test for and, from my research, are usually treatable to a certain degree. Visits to an ENT, a NORA-certified optometrist, and an endochronologist may be necessary.

I don't have any magic words of advice, I wish I did. Just know that there are some very caring, knowledgeable people here who can offer support and advice for your consideration.