I am on 10 mg Celexa to start (doctor said start at 20mg but nurse and pharmacist said start with 10mg). I want to switch from morning to night time. Can I just skip my morning today and take tonight? Should I start 20 mg tonight? I am on day 6. I feel awful - just horrible anxiety. I was on Celexa for 5 years and did great - I have been off for three years and unfortunately started to have severe daily anxiety and panic attacks again.