She ran a 3:50.0 in 2015.
In 2016, she could only manage a 3:57.3
This year, it's even worse, 3:57.8 and 1:59.3. She had to qualify on time for the final.
Imagine a 3:50 runner who has trouble breaking 2 in the 800m
It's as if it's not the same person. Kind of like when Caster was on her estrogen medication.