I was in a very bad car accident about 3 years ago. With the force and and how fast we were going, I hit my head on the dashboard in front of me splitting it in two. From that, I have a big dent in my forehead from the base of my hairline to my eyebrow. When the accident happened I had test run on my head to make sure it was okay, but I m doubtful that that was accurate. With that much trauma and force to my head, something had to be wrong. I get severe migraines that last for days, and nothing helps with them, I even wake up with them sometimes and I also have very bad memory. I could forget what I just did even though a couple minutes have pasted. Should I be worried and get it checked out? Or is that normal?