anxiety
"I was prescribed this for mild anxiety after I was in a car accident and the headaches I got as a result. I took ONE 20 mg at night and woke up four hours later with the most horrible panic attack (that's what the doctor said). I've never had that happen in my life. My heart was racing and pounding, I would get hot then cold and back again, I was shaking so bad I could hardly type. I wanted to cry but couldn't, scream or something. I felt like all of a sudden I had a different personality. My heart raced for 4 days after that. I never took another after that first one. I've been having heart pounding sensations for days in the last three weeks since taking the Cymbalta. "