Michael Friedman, L.M.S.W.: You Can Be Depressed Without Being Sad
OK so just found this either you have to be really sad or you have to have anhedonia (lack of pleasure) which is a sz negative symptom too so theoretically you could still be starting to get depressed...you need more symptoms for an actual dx but something to consider because basically you're choosing between something untreatable (negative symptoms) and something treatable (depression).