If you are in a lot of pain from having the spinal tap - call your doc right away, even if it is Sunday! or get to an emergency room! You could be leaking spinal fluid.
From
www.webmd.com/epilepsy/guide/epilepsy-spinal-tap?page=2After a spinal tap, call your local doctor immediately if:
*You notice any unusual drainage, including bloody discharge, at the puncture site.
* You develop a fever
* Your headache persists
* Your pain symptoms worsen