That happened to me before too and I just went to the ER. They refilled my scripts no problem, but I was terribly worried they wouldn't. Needless to say, I left my Pdoc's secretary a nasty voicemail about leaving me without meds over a long weekend. The one and only time I've ever done that but I think it was warranted given the type of withdrawal experiences (or discontinuation syndrome as they like to call it) you can go through with stopping meds abruptly.