I (F 29) never have had anxiety my whole life, but at the end of last year, I felt lightheaded at work out of nowhere which I thought something related to my health or something has to do with blood pressure. After a week, I felt the same thing lightheaded and dizziness but this time it was more severe that I felt like I was going to pass out. I went to emergency, and they ruled out as heart palpitation and almost panic attack since they don’t find anything in my blood work and everything is fine. I had never problems with caffeine, but after those episodes, my body responded to caffeine differently. I would get panic attack whenever I have caffeine. My body gets cold, and I start shaking followed up with lightheaded and dizziness. It goes away and comes back, and last 4 to 5 hours per episode. I also feel like my body is floating whenever I am experiencing it. Is it long termed thing since it’s bothering my daily life, and I am really frustrated with that?