So insanely stressed!!!!!

So I passed my three hour glucose test by one point (just a hair) I got a call yesterday from the office saying they want to fail me anyway since it was so close and have me start pricking my finger, seeing a dietician, ect. First of all, can they even do that?! I know it was close but, I did in fact still pass... If the passing numbers were not safe then why are they the passing numbers?! I don't mine seeing a dietician... Getting on a stupid "special diet" it will probably be good for me and baby with or without gestational diabetes... But I do NOT want to pick myself 4 times a day... I hate needles, they get me so worked up, but Especially because I passed the glucose test! Please... Advice from anyone would be so appreciated.