I had been on Cymbalta (30mg then 60mg after 4 weeks) for 6 weeks for panic/anxiety and thought I was fine with it but all of a sudden I felt like I was going to loose my mind. I had severe agitation, crying spells, anxiety and panic, I felt like banging my head against a wall, the list can go on. The psychiatrist said go back down to 30mg because I was over medicated. I would rather suffer the withdrawal than put that poison back in my body. How long with this dizziness and nausea last? I have other withdrawal symptoms but these are definitely the worst! No other medication (Lexapro, Prozac- to name a few) has ever made me feel so terrible.