My pressure was very low as well. So low, they couldn't get spinal fluid to send to the lab so the radiologist had to withdrawal it slowly with a syringe. He got 5cc in 1.5 hours. Boy did I get a spinal headache. Anyway, I found out later I have a Chiari 1 malformation. It shows up on MRI. I don't know if it caused the low pressure or not thought. It is mild. I have heard a CINE MRI can be done to look a spinal fluid flow. I don't know much about it though. Someone had it done and posted here. You may want to google it.
Does anyone know of a way to check CSF pressure without having to do a LP?