I've never felt this angry before...

So I've recently noticed that in the past few months, the days leading up to my period has caused a huge spike in my irritability and anger. I know those are pretty normal symptoms, but for years Ive always had the same symptoms, just felt sleepy and lethargic. Now I feel like I'm a second away from snapping. I work with kids, so I'm nervous about what might happen if I lose my cool with them. I think it might be my birth control, but it could also be my work environment. Has anyone had a big change from their normal period behaviour and has it been from your BC?