Fidatov took the Balkan Cross Country title for a second time in 1990,[4] but managed only 60th place on the world stage. That same year she was fifth over 1500 metres at the 1990 European Athletics Championships. Her focus began to turn to track running and she competed in the 1500 m finals at both the 1991 World Championships in Athletics and the 1992 Barcelona Olympics. She doubled up for the 1993 World Championships in Athletics, running in both the 1500 m and 3000 metres, although she failed to progress from the heats stage in either discipline. Her performances did earn her a place in the 3000 m at the 1993 IAAF Grand Prix Final, where she finished sixth.[3] She also improved in the World Cross Country Championships over this period, coming 25th and 26th in the 1992 and 1993 editions, respectively.
Her 1996 season started with controversy as she failed a doping test in South Africa for a banned diuretic. However, she escaped punishment as a panel accepted that she had used the substance to treat her kidney pain.[8] She retained her World Cross bronze in 1996, in a Romanian team led by an emerging Gabriela Szabo.[9] Her second Olympic appearance, representing Romania in the 5000 m at the 1996 Atlanta Olympics in August, saw her claim a career best finish in a global track final by coming seventh overall.[2] The following month, she was selected for the marathon relay at the 1996 IAAF World Road Relay Championships and the team (including Iulia Ionescu, Chirila, Lelia Deselnecu, Negura and Luminita Gogârlea) finished as runners-up behind the Ethiopian women.[10]
She failed a doping control test at the 1998 Cross Zornotza after nandrolone was detected in her system,[20] an infraction which led to a two-year ban from the sport.[8] She did not stop her training during this period and received clearance from the IAAF to take part in the 2000 IAAF World Cross Country Championships.[21] She managed 46th in the short race but only 68th place in the long race that year.[22] She competed twice more at the event, taking 13th in the short race in 2001 (leading Romania to the bronze) and finishing 41st in 2002.[3] These performances brought her total number of career appearances at the competition to thirteen.[1]
In 2000, at the age of 40, she ran the 5,000 metres on the track in 15:20.59 to win the Romanian National Championships.[23] The time is the current W40 Masters World Record in the event.[24]