I tend to do this if I don't have something to occupy my mind. I get bored easily and feel that if I'm not doing something that I'm wasting time. I try to keep my schedule busy even when I have to myself. I call it structure.
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Bipolar I, Depression, GAD Meds: Zoloft, Zyprexa, Ritalin
"Each morning we are born again. What we do today is what matters most." -Buddha