Hello everyone! I've been having a strange problem and am looking for leads into what may be the cause. I like to know what symptoms are associated with what before seeing my doctors.

I am Pregnant, and due next month, keep in mind. I also suffer from super morbid obesity.

Anyway, the problemis this- I've intermittently gotten bad spinal pains. My ENTIRE spinal cord, from the back of my head down to my lower back (Not extending to my rear end, just following the cord and not the spine itself) THROBS. It feels like it is throbbing along with my heartbeat. It comes and goes, making my entire body get tense without my control. I just lay there and scream...It's horrible!

What would cause the entire spinal cord to throb?

Thank you
~Sabby