填空题 I had a d (66) time last year with my health. For several months I su (67) from periodic headaches and almost constant nausea (恶心). I made several visits to my doctor, who attributed my headaches to migraine (偏头疼) and pro (68) me with medication. When this failed to work he f (69) on my nausea as the root cause of my problems, and (70) (blame) my headaches on the nausea. I took five blood tests, (71) of which revealed anything significant. I discussed my diet with the doctor at length, and we tried elim (72) certain foods from my diet. He suggested, for exampie, I might (73) be from a low-fiber diet. But still the symptoms persisted, and I started to resign myself to (74) (feel) ill for the rest of my life. I was understandably con (75) about the possibility of the illness (76) (be) something serious, even a brain tumor (肿块), but the doctor said that my anxiety was a result (77) nervous tension and stress. After six months I was referred to a consultant at the hospital, who spe (78) in stomach disorders. She said that, even allowing for my age and stressful lifestyle, it was still (79) (normal) to experience symptoms like mine for so long. She elaborated on all the possible causes of nausea in de (80) , and suggested that in my case the nausea night be the result of a liver disorder.