Yes, your dose is rather small. Even though you have taken it for a long time, I would be surprised if you had seizures from stopping such a low dose, especially of Klonopin, which tends to taper itself from having a long half-life. For many people it helps to have a trusted family member controlling the medication; a reasonable taper could be either slow or fast depending on your anxiety level. You could reduce the dose each week, or every 2-3 days; in either case you could reduce by a quarter mg each time. so your dosing would go 0.5- 0.5 at first, then 0.25- 0.5, then 0.25- 0.25, then 0.0- 0.25, then 0- 0. again, changing each three days would take 9 days; changing every week, say for people who have a great deal of anxiety, would take 3 weeks. Either way should be completely safe from dangerous effects-- unless a person has an untreated seizure disorder or has had repeated bouts of severe withdrawal, which after awhile leave memory traces behind for future episodes of withdrawal.
i am addicted to a different drug but i have have some bouts with xanax withdrawls b 4. i was only taking a couple of 10 mgs a day for a short time but when i stopped i went through hell for about 2 weeks. my doctor put me on klonopin to get off the xanax. i could not even feel them. i cant beleive u r having that much trouble? i guess everyones different huh. i would try to just slowly taper off which is what im doing with my drug of choice. i really wish u the best.