Anxiety about Medication Increased

The psych nurse increased my Bupropion/Wellbutrin to 450mg. I've written a post about this on the depression forum.

I'm having anxiety about having seizures with this increase. I spoke to the psychology nurse and a pharmacist about this. They assured me that the risk of seizures is low, especially if you never had a seizures before. However, I've been reading stories of people having seizures at this dosage although they previously never had seizures.

I don't know what to do.