I haven't been able to see my NS yet so I have no idea what to expect right now. My last MRI showed an 8mm herniation, they were rounded. No obstruction to CSF flow, not causing any damage to other structures of the brain, and my full spinal MRI showed NO syrinx and said my spine was in perfect condition. My question is, how fast can it get worse? Can you just develop a syrinx in a matter of weeks or is that something that takes time? Same for the herniation. I have so many questions and feel helpless that I can't get answers... it seems like every where I look online is just so vague.