Thinking....I probably should have tapered off of my caffeine when I was drinking it and maybe I would not have had anxiety issues. I was drinking at least 350 mgs of caffeine daily and near 500 on weekends [2 cups of coffee, 3 cups of Lipton tea with 2 teabags in each cup]. When I went on Zoloft, I dropped to zero and could have made me way more susceptible to side effects.