If you bruised the nerves in the skin over your skull, it can take months for those nerves to heal. There are not nerves in the brain that react to bumps. These skin bruises do not appear like a muscle bruise. They are just tender.

I doubt it is aching. Instead, it is tender to the touch.

Consider this: If you keep your appointment with the neuro and all you have is a skin bruise, you risk alienating that neuro so he is not open to your needs when you truly need him.