gestational diabetes????

Nikole • 22 • expecting baby #2
I just left my 24 week check up and my doctor said my uterus is measuring a bit more ahead than my baby. My son is measuring fine, but unfortunately, she informed me that this can mean I have gestational diabetes so she ordered me to take my glucose test as soon as next week. not only that but now I have to do a growth follow up ultrasound to make sure he's growing the way he should. to say the very least, I'm freaking out. I have no idea what this means for me & the health of my babyboy. has anyone ever been through anything similar?