My husband is 69 years old and is experiencing hot flashes usually later in the day around 5:00 pm. He is currently taking blood pressure medication,1/4 water pill, cholesterol meds,and medication for prostrate. He has had abdominal ultrasound - showed abit of a fatty liver. Blood work was normal. He has recently stopped drinking. He drank maybe a half bottle or a bottle of wine every evening. What could be causing the hot flashes?