Failed glucose test

Has anyone every failed the 1 hour glucose test but passed the 3 hour one? I failed my first one and now I’m extremely anxious and paranoid about having this 3 hour one done. I’m really afraid I’m going to fail. I wasn’t told what my numbers were or how much I failed by so I really have no clue what I’m in for. Does anyone know why I would have failed my 1 hour test if I don’t have GD? I didn’t eat anything prior to the test.