For me I never had traditional symptoms. All I had was horrible headache pain to where I couldn't move and stiffening in the back of my neck. I have 9hiari 1 and syrinx. I have the same symptoms. Numbness in finger tips, short term memory. It can also affect pressure as in frequently feeling like you have to pee. Basically fluid goes around the brain. When you have chiari it pushes down on your cerebullem and causes the fluid to go down the tiny hole in your spine which causes the symptoms. Or syrinx can occur if you experience trama. I hope I hope I was of help
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