Prior to this I had poisoned a weapon, removed all and then wore everything again.  Then I went to sleep and phantom poison struck me but then went away when the poison spell faded from the weapon.
Code:
Health 100 Mana  16 Movement 100 
You wake, and sit up.
You shiver and suffer.
Your poison injures you.
Health  87 Mana  21 Movement 100 
aff
 oOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOo
 o [Affects] XXX                                                             o
 o===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===o
 oOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOo
Health  87 Mana  21 Movement 100 
sleep
You go to sleep.
Health  87 Mana  21 Movement 100 
You wake, and sit up.
You shiver and suffer.
Your poison injures you.
Health  78 Mana  28 Movement 100 
aff
 oOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOo
 o [Affects] XXX                                                             o
 o===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===o
 oOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOo