I've had really bad inside my head dizziness, itchy painful ears, headaches, & lower abdominal pain with sore breasts. I'm 45 could I be menopausal?

Have an exam. Yes, you could be beginning menopause, it's early but not too unusual. However those symptoms are more likely to be from something(s) else. Have a good check-up, maybe labs and find out what's going on. It may be something minor and it may be more than one thing. Be well!