migraines, the nervous system, and other nerve-related issues (a question)

Hello Forum,

I'm relatively new here (but unfortunately, not so new to migraines and headaches)...and I'm not sure I've done a very good job of searching past threads in the forum, so if this is a conversation that has already occurred, I apologize, and please feel free to just send me links to whatever has already been discussed...

My question is about migraines and the nervous system, and, like the "subject" of the post says, other nerve-related issues (and, more specifically, other nerve-related pain). I am wondering if it's possible for a person's nerves, in general, to become more sensitive to pain than they've been in the past, and if so, why, what causes it, and how can it be addressed? ...after my migraines had already become extremely frequent and severe, I also happened to break a bone in my hand, which is healed now, but it sort of re-activiated an old injury - nerve damage in my wrist. The pain in my wrist is nowhere near as severe or frequent as the migraines/headaches, but because I know that migraines are related to nerves, as is the old injury, I've been wondering if there is any correlation...it seems like a "stretch" and I can't figure out what "search terms" to enter into google or other search engines to try to research this, which is why I'm starting here instead...maybe someone knows something about this? Or has a similar experience? Or even just has some ideas about what I should/could look into...? Or does this just sound completely absurd...? (If it does sound absurd, let me know...I feel like I've been trying to deal with chronic migraines for so long now that I have come up with so many absurd theories - as have my doctors - that I don't even know how to tell the difference anymore...)

Thanks...

A

PS- Another question, if it helps to guide or facilitate the answers to the main question in this post is this -- other than neurology, which I know is related to nerves, is there a more specific field of medicine that has to do with nerves and nerve-related pain...and if so, is there a kind of doctor that it would make sense to look into, other than a regular neurologist or a headache specialist, on this issue? I do actually have a neurologist that I think I might like (I've only been seeing him for a month or so now, so I'm still not sure) so I don't want to switch neurologists...but maybe there's someone else I could see in addition? Or a clinic or something? I am willing to go anywhere at this point, if it means there's more hope to finding a way to manage these headaches so they don't totally destroy my life...and I'm a student on a leave of absence from school right now, so I have as much time as I need...