Moms with Gestational diabetes??

Hello, I was just diagnosed with GD and was put on glyburide... I've been on for two days and my sugars have been insane.. I've never been higher than 180 and today I was 253 and dropped to 87 within 1 1/2 hours... Anyone have this issue? Know anything about glyburide? I'm stopping the meds tonight... I feel aweful and shaking... I have an appt for Tuesday to hopefully start insulin... Any moms have better luck on insulin? Thanks in advance!