Question about stopping kpins

I have been taking mainly kpins and maybe 2 bars total for the past 2 and a half weeks. I usually use about 4-6mg total spread out through out the day. My question is have i even been using enough or long enough to get withdrawals? I have about 10 mg's left that i can slower taper with if need. I work a very physical job so I don't wanna have WD's while at work. Any help would be appreciated