Hi. I have had arachnoiditis for perhaps 10 years or more. Due to degenerative disk disease, I endured a large number of discographies, nerve blocks, spinal taps, myelograms and other invasive procedures as well as two spinal surgeries (cervical and lumbar with a great deal of instrumentation implanted). Arachnoiditis definitely can develop from too many invasions to the spine, as in my case. My primary symptom , which is differentiated from my other numerous neurological disorders and diseases, is burning pain in the buttox and severe cramps in my feet every day. They can be triggered by walking on a cold floor or just buy the temperature in the room being too cold. They are much worse at night. The only thing that has helped reduce the number of painful cramps per day is a drug called Pranipexole, prescribed by my neurologist several years ago. Prior to taking the medication, almost every step I took caused a “Charlie horse” in the arch of my feet. I hope this helps someone.