Sounds normal from my experience. Learning to be in the "average" was definitely something that was new to me, and something that made me restless. I mean - "nothing was going on!" WTH?! I have gradually learned to trust those kind of days/phases....and be grateful for them.
Right now I am working on factoring in "margin" to my life - it is FULL and I need more space to just "be."
Developing a program (I am in AA) and learning a new action plan as well as spiritual plan for my life in recovery has been key to living with an accepting ALL kinds of days.