pseudobulbar affect
"Diagnosed with a paraneoplastic neurological syndrome that has been progressive.  Latest development was extreme mood changes and sudden outbursts.  After one week on Nuedexta, I felt much improvement.  Had to stop during third week due to infection (I am immunodeficient due to chemo) and antibiotic I was taking.  Fell back into prior symptoms.  Now into second week retaking and positive effect is the same as the first time around.  The difference is remarkable."