I started taking 10mg Lexapro for anxiety on Tuesday at 1pm by 6pm I started feeling off. Had burning, pins and needles in my chest, arms and torso. I couldn't sleep and couldn't keep anything down. I almost ended up going to the ER because my anxiety was 10x worse. I thought I was dying. Yesterday was Wednesday and I felt a little better but kept having random episodes of the same feelings from the night before. I slept last night and woke up this morning but am still feeling off. Not even close to as bad as the first night and most issues are gone however I still have absolutely no appetite and if I eat I feel nauseous. My anxiety is worse than it was before the medication too. How long will it take for all of these side effects to completely go away?