I'm not sure if it's a good thing or a bad thing to have a "normal" level of crazy. While I think I come by it honestly (you'll understand if you're family or you have met any of my family); I'm not sure if there's any basis for it in scripture. Of course my "Martha" (Martha of Bethany, not Martha Stewart) personality, can totally relate to having a normal level of crazy given the number of things that need to be taken care of on a daily basis; and even the unexpected things that make things really crazy.
Given the ultra-crazy season I've just gone thru, returning to a normal level of crazy is a somewhat a relief. However, I have friends who are going thru seasons of "above normal" crazy. This includes surgery and other health issues; problems with children and their health; interpersonal and family relationship issues; financial issues; spiritual and emotional crises; and many more.
The encouraging thing about seasons of above normal levels of crazy, is when it leads us to the feet of Jesus, just like Martha's sister Mary. I'm thinking that having at least some level of crazy in my life can keep me from becoming complacent, and still bring me to God. So while it may not be Biblical to have a "normal level of crazy"; it can still be used by God to bring us the feet of Jesus and encourage us to stay there more than we would otherwise. My hope and prayer is that even during the seasons when I am at the "normal level of crazy", I still remember to sit at Jesus feet.