It seems I get more anxious before I eat . I'm afraid of choking on my food. I've never had to worry about that.
Various head pressures and the like are common side effects of Lexapro. Give it 4-6 weeks to see if the benefits, when they start, outweigh the side effects, which begin immediately. If the problem persists and the benefits aren't that great, it isn't your drug. Also make sure you need medication, meaning your life is seriously disrupted and non-medication means, such as therapy, have been exhausted. Good luck.