Syringomyelia Support Group
Syringomyelia is a disorder in which a cyst or tubular cavity forms within the spinal cord. This cyst, called a syrinx, expands and elongates over time, destroying the center of the spinal cord resulting in pain, weakness, and stiffness in the back, shoulders, arms, or legs.
For the balance part, I am not sure about the thoracic syrinx causing that unless fluid was blocked and pushing on the cerebellum somehow. I know my balance issues were due to my cerembellum being herniated and under constant pressure. The cerebellum is the portion of the brain that is in charge of motor control/skills. Usually syrinx happen due to trauma or improper fluid flow (usually due to blockage or increased pressure).
After my chiari decompression surgery and then my external ventricular drain I felt a lot better for a while and regained feeling in places I had little to no feeling in before. But then My symptoms started coming back and I had a lumbar puncture performed to test my pressure level and I found out my pressure is elevated. That means I have idiopathic intracranial hypertension (aka. pseudotumor cerebri). I found out that I need a third brain surgery to have a shunt put in.
As of now the syrinx shrunk a little since surgery and then stopped shrinking and did not fully go away. Syrinx are tough because sometimes they could cause a ton of issues in a person, could be caused by something else, or sometimes not cause any symptoms and people do not even know they have them.
I know i kind of gave you my story instead of a direct answer but that is the best way I know how to describe things and answer your question as best as possible.
You can message me whenever you feel you need to. I am very close in age to you so I can relate to what you are going through at a certain point in your life. I am a 23 year old veteran and collegiate athlete so I have a lot of decisions to make about my health that will impact the rest of my life as well so I totally understand the feeling of being nervous, scared, anxious, and in a way relieved to have a diagnoses.
I wish you nothing but the best. Try to stay as strong as you can!