You should not take zoloft and adiplex...its a bad and sometimes dangerous combination. Adiplex has a stimulant effect,and perhaps you are missing that....there are no warnings about withdrawal effects from this medication.
Don't know about Zoloft with Adipex, I know not to take it with MAO inhibitors. But google it -- on site said it does cause withdrawal if you've been on it for a long time, mostly extreme tiredness and depression, and to go off slowly under a physician's care.