(Hugs) spinal headaches are the worst!
Laying flat, like everyone else said. When DS was 2, they told me to give him caffeine. Then, years later, when I had my first spinal headache I drank caffeinated drinks. I don't know if it's still recommended, but it seemed to alleviate some of the pain.
I hope your body heals quickly, and you feel better!
Sent from my iPhone using Tapatalk