Posted 8/29/2012 5:24 PM (GMT -7)
They can be uncomfortable but are rarely very painful. They're a very frequent way of checking for intracranial problems. The lumbar puncture (as they're often called) will give your doctors a better idea about the source of your problem and most likely lead them to a good way to treat it.
Best wishes and try to relax, knowing that this problem is out of your hands for now.