End of Cycle blues

I may have mentioned this already, but since about September 2006 I've begun to experience an unusual (for me) amount of anxiety towards the end of my monthly Temodar cycle. Today, January 6, 2007 is day 24 (out of 28) of my 7th cycle of Temodar. I've been sleeping peacefully each night this week and then tonight I'm wide awake at 3AM. I tried meditating for a while, got back in bed, but my mind was racing between all sorts of things that could go wrong in my life. All in all, this isn't so strange or awful, but it's so predictable that I can't help associating it with the Temodar cycle. When I had my one-week reprieve from the cycle last month I felt these feelings melt away almost immediately. I am looking forward to May and leaving Temodar behind.