Just been standing on the train (only go one stop and I always get by the door for a quick getaway!) and suddenly went dizzy and lightheaded. Only way I can describe it is like I imagine a panic attack to be?! I was carrying some shopping which maybe was heavier than I thought. Was also thinking about doing my work announcement tomorrow. Sat down at the station for 5 minutes before walking to the car and feel fine now?! Strange!