no caffeine is the way to go.
We need to be more aware that caffeine causes/exacerbates anxiety and other mental health conditions.
Just read the 170+ pages of comments of people trying to get off caffeine here; http://coffeefaq.com/site/node/11
And the research referenced here; http://caffeineevaluation.blogspot.co.uk/
Many people feel they cannot ‘get going’ in the morning without caffeine; in reality they are just experiencing withdrawal from not having ingested any over the previous hours.
A key point is the research showing anxiety sufferers can be very sensitive to caffeine; some people think ‘it can’t be the caffeine, I only have 1 cup a day’, but for them that could be the key issue in their anxiety.
Withdrawal is not easy (especially first 2 weeks, when anxiety actually goes up), but is possible.
How about cutting all caffeine for 30 days and seeing how you feel? What’s to lose?