Hi. We can certainly continue after this if you'd like but I have to consider this an emergency situation
Any constant headache like that, combined with the dizziness has to be considered an intracranial hemorrhage--perhaps from a leaking aneurysm.
The othe possibility would be a severe disk problem in your neck.
Either way, you need immediate medical attention for an exam and an MRI of both your brain and your cervical spine.
You need to call for an ambulance to take you immediately to A&E without any further delay.