I've involuntarily cold-turkeyed for 7 days without a problem. Are you taking 1200 mgs once a day or splitting the dose ?

Some meds can cause symptoms when there is a change, both increasing and decreasing the dose after a steady state has been maintained for an extended period.

If you are going to wean off completely, please let your doctor know. Some people struggle with depression from changes.

The likelihood of a seizure is entirely dependent on your brain's condition. I don't think anybody can predict.