My knuckles were at one point fairly pointy, with deep valleys between them. I noticed after a while that the first two knuckles (where I generally strike with) have flattened out slightly. I can even notice a change between a soft fist and a slightly more clenched fist - I can visibly see the knuckles slightly roll outwards to form an even flatter surface.
Is this normal and as I continue how should I expect my fist to change?
There is no pain or anything like that, just an interesting change I've noticed.
EDIT: Because I'm seeing a lot of people talking about bone reshaping I want to point out that this change is not intentional, it's just what I've noticed. There are currently no known medical implications. It's more of a curiosity in whether or not this was common and how it might continue to change in the future.