If I remember my high school biology right, most of the sex hormones are produced by the ovaries, not the uterus, so unless your ovaries were removed along with your uterus, you should be experience many menopausal symptoms (hot flashes, or whatever) like a typical woman. If after your hysterectomy, the doctor prescribed replacement hormones, and you’ve been taking them ever since, you won’t have a menopause.

If you had a total hysterectomy ( removal of uterus and ovaries) you have been ’surgically menopaused.’ ( You went thru menopause then) If your ovaries were left, you may experience hot flashes, night sweats.
If you are having heart palpitations which are common, I urge you to see a cardiologist.

once you have hysterectomy, that is when menopause starts, and you are just one of the lucky ones not to have any symptoms