Confusion

Recently I lost a whole week.  I don't remember what I did.  When I looked at my date book I couldn't remember if I had actually done any of those things.  What a scarey feeling.  I thought these times of confusion were over.  It's been six years!  My husband doesn't understand why I'm not "over this".  I feel disorganized at work and my assisstant constantly has to remind me of dates, plans and events.  I thought I had a pretty good grip on this.  What's goin on?? I admit I'm a little scared.