rimhap

I'm working on a mod that adds a new chem. Keeping it real simple, using all existing scripts in the GECK to avoid any bloat or compatibility issues, so I have the Addiction value set to WithdrawalPsycho. When I test the mod, most everything works fine: the addiction visual kicks in as expected and when the chem wears off I get the notification that I'm suffering from withdrawal. However, when I go into the Pip-Boy, there's no Psycho Withdrawal under EFF and no change in SPECIAL stats. Any idea what I could be missing? EDIT: title and screenshot