seizure???

Could someone explain this to me. So I'm a cosmetologist, and I have blow drying my clients hair. I was standing there for probably 5 minutes, and I was staring at her hair and only her hair, and then all of a sudden my body felt like I had a mini seizure, I've never had one before, and my family doesn't have history of it, but it was like I blacked out, and my body felt weird, and my eyes got blurry. I have anxiety, like really bad, but has that ever happened to someone?