Yes, you can have lupus without "ALL" it's symptoms. Generally the Lupus organization and the CDC define Lupus as having 4 of 11 symptoms - it isn't dx by ANA alone.
See the links below for more info
Lynnwood, Lupus & Sjogren's ModeratorDIAGNOSING LUPUS & LUPUS RESOURCES
"Life is far too important to be taken seriously" - Oscar Wilde