I have been haveing lower stomach and lower back pain on my right side ,nausa ,and terribley tired.Possible low grade fever.This is the second time this has happened.This time was the worse.This time lasted about a week.DR, says not kidneys,not ovaries,I had a partial hyster.in 1974.I really need to know what is wrong with me.I have gained a lot of weight this year,weight not fluid.