I'm a college student and since I started this new job as a cashier last week I've been having rapid heartbeat when I wake up and through out my day sometimes. I don't really like being a cashier it makes me nervous when messing with people money and also when they talk fast placing orders I be afraid that I'll mess up there order. I attend to panic a lot over small things cause I don't want to mess up people orders a year ago I had a panic attack and I'm just wondering is my constant worrying causing me to have rapid heartbeats and hard for me to breathe normally