Ok here are my two cents, but I'm no expert on these things:

With the certainty of neck problems in the picture, my "first pick" would be Cervicogenic Headache:

http://ihs-classification.org/en/02_...1_cranial.html

If you have a history of migraines then the likelihood of there being a migraine component goes up. The other thing is pain type. The dull ache does not sound like migraine, but the throbbing pain does.

What leads me away from the migraine path is the fact that you've not mentioned other typical migraine symptoms.

Light and sound sensitivity are pretty typical of migraine. Nausea is frequent at some point during the attack. Technically, for a diagnosis of migraine, the International Headache Society (IHS) criteria require the presence of A) nausea, or B) both photophobia and phonophobia.

See: http://ihs-classification.org/en/02_..._migraine.html

There are other migraine types which you can browse if you go to that site. Migraine with Aura has several subtypes you might want to look at.

The dizziness and vision can be due to basilar migraine, which is a type of Migraine with Aura -- you would have to have some aura sx: http://ihs-classification.org/en/02_..._migraine.html

The IHS also has a diagnosis of probable migraine for those who meet all but one criteria for any migraine subtype.

You could indeed be getting mixed attacks. Are you mostly trying to treat these things, or more trying to figure out if the neck is the source of the headache, in order to decide about the ablation?

waves