Hi, So I Experienced A Blunt Trauma To My Head

Hi, so I experienced a blunt trauma to my head when I was a younger child, maybe 6+ years ago. I fell off a fence and land head first into the concrete ground. I had a lot of head bleeding and severe swelling. I went to the emergency room and was treated there,but I never had a CT scan done. for years after, up until my teens, I always got really bad headaches almost every day. They don't happen as much anymore, but I am still left with the knot on my forhead. my question is, could there have been any long term damange done to my brain as a result of this injury? because although I never questioned why, I have had problems articulating my speech since then. Also, is there any way to have the knot removed as such a long time?