Hi, i'm a 45 year old female and for the past two months i've been feeling nausea all the time . it is such a horrible feeling a constant feeling of an upset stomach day and night even my own saliva makes me nausea waht can it be ? can it be menapuse ? I also have alot of menapause symptoms. and i had a hysterectomy about 6 years ago. can some one please help me. THANKS. :'(