Call your doctor. They can do a blood test, to see if you started pre-menopause. You are a little young, usually late 40's.
Tiara
While menopause generally starts mid to late 40's, it's not unusual to see people experiencing symptoms earlier. Irrespective of that, you must visit your primary care doctor or OBGyn to get yourself evaluated. High BP can only be diagnosed if your BP is actually high on more than one setting.