I have chiari and a "small" cervical syrinx with lots of symptoms too.... I can have good days, weeks even months and then BOOM - the syrinx symptoms just flare up. I have been in a flare up stage for the past 2 weeks and have not been able to work much (I am a writer and Psychologist - can I say that?) and have difficulty managing normal daily activities. Historically, I am a very active, healthy, athletic person and this is just so difficult. I went to the grocery store yesterday to just try to feel productive (oh gee..) and was crying by the time I got back to the car. I have very bad neck pain, of course, shooting and burning pain into my traps, shoulders and in between my shoulder blades, weakness in my upper arms and pins and needles in my hands and fingers. I am use to running marathons and doing triathlons and now going to the store feels like a marathon. I am on meds right now to try to manage the pain and I HATE feeling like a med head
What seems to help me is Celebrex and Valium at the therapeutic dose for muscle relaxer. I cannot tolerate any other muscle relaxers but Valium does seem to help with the secondary spasms I get. I know there really is no good medication managment for a syrinx - but anything that helps with the pain and any secondary efffects such as muscle spasms and or trigger points might help take the edge off. I get something called ART to help relieve the deep tissue pain that I get - of course all secondary to the syrinx...
Like you, for me it does not seem to matter that my syrinx is "only"10mm. Because mine is the result of the backup of CSF from blockage from the chiari I am a candiate for surgery and am heading to the Chiari Institute next month to disucuss this option. The hope would be the decompression would eventually help the syrinx to go away or at least not get worse. Just know you are not alone in feeling like this - even though you may feel that way. I just try on these very bad days to do one or two things that connects me with that healthy part of myself and keeps me inspired to get through the day. Maybe I cannot hike up that trail right now but I can drive my car to the top and still appreciate the beauty of nature. I know.......tough to have a positive attitute....but sometimes that is all we have in our control. I wish you the best.