Doing Crunches All Day Long

I’ve been noticing a lot lately that my stomach muscles are clenched up, and my stomach's tied in knots. I have to consciously make myself relax – then a minute later I notice I’m clenched up again. It’s like the default position. I wonder why. I don’t have any particular stress in my life that should be making me tense. Despite probably sounding like a pathological worrier in my blog, I’m actually pretty laid-back. Well, the upside is that if this goes on for a few more weeks, I ought to have a great six-pack.