Neck pain and headaches. Eyes affected?

There are many types of headaches, neckpain radiating to head is one of it, neck pain won't cause hypoperfusion but if there is any  mass compression neurovascular structures can cause hypoperfusion

consult ophthalmologist to ruleout eye issues

MRI BRAIN WITH CERVICAL SPINE

There are more than 200 types of headaches and each one has different treatment. From your description you seem to be suffering from Cervicogenic headache. Better to consult with a qualified pain management specialist for long term relief. No hypoperfusiin usually causes this kind of headache

Tablet nucoxia mr Rest Powergesic gel Tablet gabapin at bed time

This treatment is being suggested   on bases of the information provided.  However I would like to examine & investigate you  in detail. -Control  Hypertension, Diabetes or  metabolic disorder, if there is any.  -Any way it may be tried, --. Dolokind Plus (Mankind) [Aceclofenac100 mg +Paracetamol 350 mg] 1 tab. OD & SOS. X 5 days. --. Caldikind plus  (Mankind) 1 tab OD x 10 days. -(You may need help of your local doctor to get these medicines.) --. Fomentation with warm water. Let the part not be exposed to cold. --. Sleep on a hard bed with soft bedding. --. Keep no pillow under the head. --. Avoid painful acts & activities. -- .Do mild exercises for the affected part. --.(Take help of physiotherapist or you can visit my you tube channel 'Dr NC Gupta'.)   & see  'me and my yoga'; & 'yoga simplified'. Kindly subscribe to the channel to get notifications for further new information of your interest.  --Do not ignore, let it not become beginning of a major problem. --Do ask for a detailed treatment plan. Kindly make sure, there is no allergy to any of these medicines. --For emergency treatment visit nearest hospital. --Wish you a quick recovery & good health. --I hope, I have solved your problem to your satisfaction.   Dr N C Gupta MS (ortho) DMC 3624