^ Very probable. I was also thinking that dopamine receptor hyperactivity may possibly be implicated as well, as in the case of psychosis induced by amphetamine withdrawal, since both are dopaminergic substances. I've scoured around with little luck in finding psychosis as a side-effect in any case report of bupropion withdrawal. It may help to use a substance which mimics bupropion with noradrenergic and dopaminergic properties such as mirtazapine to use as a step down drug along with a benzodiazepine.
purplepassion I hope your doing well, and please post here to inform us of your progress. I'm going to move your thread over to The Dark Side, as you're weening off an anti-depressant, and it would be good to hear some advice on how to cope with the withdrawal, and to manage the symptoms the medication was treating on your own.
BDD---->TDS