The onset of pain under any circumstance shouldn't be ignored. I highly recommend that you pay a visit to your doctor as soon as possible.
That said, I'm not sure why your post bears the title "Stroke". Strokes usually present over the course of several hours and involve a plethora of neurological symptoms, like confusion, difficulty speaking, memory loss, sudden lethargy, tingling or numbness down one side of the body, and sometimes a sharp pain in the head. Should ever experience these symptoms collectively, get yourself to an ER immediately because some the damage done by a stroke can be reversed if anti-coagulants are administered within 3 - 4hrs of the clot developing. The anti-coagulant, in and of itself, is a potent drug, so the ER would thoroughly vet you before administering it--which will include a check-up by the neurologist on call.
I'm not a doctor, but judging by your post, I doubt you're having a stroke...especially if this pain has been occurring for several days. The location of the pain (unilateral, neck, spreading into head) actually sounds like it could from a tooth infection. Have you recently had dental work done? Do you regularly see the dentist?
Regardless, visit your GP and get put on antibiotics, and possibly see your dentist (if the GP doesn't find that it's solely another sinus infection). Even if it's not a sinus infection, you could have a bacterial infection from your mouth that's invaded your local tissue and that's not good because of the proximity to your sinuses, inner ear, and of course, brain. The extreme pain is just your nerves freaking out about the invasion of a very sensitive area--they're doing their job. I hope you feel better soon!
Thank you very much, all of your analogies appear to be acurate. I have had dental surgery, I do suffer sinus and ultimately did report immediately to the ER for an evaluation. Sinus infection was the prognosis. Antibiotics were prescribed for 7 days, ending today. Dental appointment 2 pm. Today. I recently had an implant removed as it had cavated, and not recognized until time of crowning when X-rays were taken. The I felt was surely more acute than that ever experienced. I had made an appointment the day before for my ENT, however upon awakening in the early morning hours, fear set in along with panic. I wanted reassurance that would allow me to be relieved enough to wait and follow through with the appointment. To no avail did I do so. Cat blood work and scan confirmed the existence of bacteria. White blood cells battling the red. Again thank you. FYI, ice on the area kept me from needing to consume narcotics. Even though prescribed, I never had to injest them for the pain.
Thank you. I went to ER. It was an acute sinus infection. I awakened in pain and panic.
No problem, I'm glad you were able to treat the problem!
Sinus infections are nothing to scoff at, especially if they originated from a bacterial infection of the mouth, so it's important you took care of it immediately. Any facial pain is always worrisome, and deserves to be investigated. Icing the area reduced inflammation, and thus, pain. Feel better soon!