It is a possible SERIOUS side effect of the med...and according to the script insert, CONTACT A DOCTOR AS SOON AS POSSIBLE if this happens.
Current treatment (began June 10th 2009):
Biaxin 1000mg/day, Pulsing Flagyl 500mg/day 1 Week Every Month
"Breathe. Let Go. And remind yourself that this very moment is the only one you know you have for sure."