According to my Drs, Lupus can go "quiet" or "inactive" but is never gone. (And they do not use the word remission with Lupus.)
I have similarly negative ANA's (where mine used to be positive) and my other bloodwork is also good. I continue to take Plaquenil and Feldene, and have some symptoms which continue (and act up if I get stressed, don't sleep, or eat poorly).
Most people say if they try to come off of the Plaquenil their lupus becomes active again. For me, I still consider myself to have Lupus, and I will be staying on the Plaquenil to ensure I don't start in with the flaring again.
It sounds like you are in similar circumstances -- just keep on the Plaquenil and enjoy feeling good!
Lynnwood, Lupus & Sjogren's ModeratorDIAGNOSING-LUPUS & LUPUS-RESOURCES
"Life is far too important to be taken seriously" - Oscar Wilde