hello user , i understand your concern. post hysterectomy some females may have symptoms of hot flushes , dizziness , anxiety etc - especially if its a total hysterectomy and ovaries are also removed resulting in hormonal disturbances and which can be treated with hormone replacement therapy if needed. however since in your case more than a year has elapsed so problem may be unrelated too. so you can consult the gynecologist who operated you for better opinion and till then you can consult a physician for symptomatic management. Hope it helps - Thank you