The Symptoms I have are loss of feeling in both feet below the knee, feeling of ants crawling on my legs, pain and twitching in the calf muscle area. loss of feeling in my hands (Palms) neck and shoulder pain/stiffness. I also have bladder issues. My Syrinx is due to a congenital issue of a bone spur pressing against the spinal cord and causing a syrinx to develop, I also have mild Chiari due to this (4mm). Some Neurosurgeons recognize this as "Chiari 0" or Chiari zero...It is important to note that not all NS do recognize this so getting a NS with experience of both CM and Syringomyelia is important.
Most NS use 5mm herniation and an obstruction of CSF flow as criteria for diagnosing Chiari 1. I have problems with my sight (nystagmus) vertigo, Dizzyness Headachs and brain fog and periods of insomnia witch the NS thinks is due to the Chiari as Chiari involves the Brain stem where all these sences are controled from.
Most of these symptoms come and go but the dizziness has become permanent for the past few years
Hope this helps...