This is another way that anxiety manifests itself. You're in a hyper alert state so your mind is being tricked into thinking a problem exists when it doesn't and, hence, you're looking for solutions by over analysing everything.
I'm a psychotherapist and for non-hormonal anxiety we can rationalise this away but when our hormones are over stimulating our neurotransmitters it is tricky to talk it down. Knowing its hyper stimulation can help though so you can learn to ignore it and distract yourself. Breathing exercises and hypnosis can all help but when you're dealing with the CNS, as opposed to the thought driven part of your brain, it is more physical than psychological. However, we can stop the anxiety about the anxiety by accepting it and, hopefully, correcting it by rebalancing your hormones.