Polytrauma and head hematoma: what are the long-term effects?

Hey everyone, I’m reaching out because about three months ago, I went through a massive multi-trauma incident involving some pretty severe brain injuries—or at least, that’s what the doctors seemed to imply. But here’s the thing: I honestly don't feel any different. I don't see any changes in my cognition or anything else whatsoever.

The medical team mentioned there were two hematomas on my head, so now I'm spiraling a bit—can anyone offer some guidance on what red flags I should be watching out for?
Does anyone have recommendations for where I should go to get an MRI done? Any specific imaging centers or hospitals you trust?