I have been on WellbutrinXL for about 3 months now. I started out with 150mg and am now taking 300mg. My anxiety (panic) attacks (whatever you want to call them) have gotten worse. I have them everyday, and take clonipin for them. I just started a new job, and can't afford to have anxiety attacks!! How do you explain this to your new boss?? I have also experienced some chest pains as well as jaw pain. Doesn't this sound like a heart attack!|?! Is there a reason the doctor didn't tell me about these side affects?? How long will the side effects last? Will all this eventurally go away?