Ever since the worry started, Kristen has found herself feeling restless, tired, and tense. She often paces in her office when she's there alone. She's had several embarrassing moments in meetings where she has lost track of what she was trying to say. When she goes to bed at night, it's as if her brain won't shut off. She finds herself mentally rehearsing all the worse-case scenarios regarding losing her job, including ending up homeless.