I whacked my head really hard 21 years ago and I'm just now beginning to wonder whether it caused some brain damage. I went to hospital for it but that was more for the "gluing my head back together" thing than anything else

I whacked my head really hard 21 years ago and I'm just now beginning to wonder whether it caused some brain damage. I went to hospital for it but that was more for the "gluing my head back together" thing than anything else
My Dad hit his head, especially his nose, on a table when he was 8, and it turned out that he hit his nose so hard it ended up being the cause of his sleep apnoea. He didn't find this out for like 45 years...