Is something wrong?

Usually, my periods are heavy to the point where I have to wear nighttime pads and change them every 2-3 hours for the first 5 days. The whole thing usually takes 8-9 days. I also get migraines and all the other accessories that come with being a girl. I also get hot flashes every night even though I'm decades away from menopause. They are super irregular even though I've had my period for years. Lately, however, I've been flat out skipping months at a time. 2 months ago, I was 3 weeks late with a super light flow and almost no side effects. This month, I was over 40 days late. I'm a virgin so I know I'm not pregnant. Then today I finally got it, but it's different this time. The blood is spotty and only in my discharge. It's not showing up on the pads. I'm still getting migraines and hot flashes, though. Is it just messed up hormones or should I get it checked?