hey there.  I have been having a very weird feeling - mostly at night when Ive been asleep.  It has increased in frequency a lot lately.  When I get up at night to go to the restroom & I come back to bed, I sit down on the bed & get a throbbing heartbeat type feeling in the base of my skull.  It will throb 4 or 5 times there then start making its way down my spine until it gets to the bottom and it will throb there 4 or 5 more times.  It hurts really bad when its happening, but then its over.
Hello, Thanks for the query to Chat Doctor. Forum. You have mentioned that excruciating pain form skull to spine and at the bottom. Irrespective of history in detail I will try my best to reply your query. Following may be the reasons,1 Anxiety neurosis (Tension vascular headache),2 Sleep but restlessness ( Chat Doctor.  Get in MRI of skull for any disease. Now coming on main point that pain in the night, end (over) after sometime. Conclusion is that this pain may be due to ANXIETY. So please a psychiatrist and get treatment. Hope I have answered your query. If any further question I will be happy to help. Wish you a good luck.