I'm a dummy

A & W Diet Cream Soda has caffeine in it.  I shoulda checked!  That might explain why I haven't been sleeping very well the last few weeks and why I've been grumpy.

In the middle of last night as I was in and out of sleep, a little voice spoke to me: "Check for caffeine in the cream soda."  I did this morning.  And, yup, it's there.  What was I thinking?  So, no more afternoon cream soda treats for me.