Hi Sarah, and welcome to the forum!
You have come to the right place for information and friendly support! Hopefully your doctor will move quickly to get you tested.
This forum is full of people who have struggled for YEARS with misdiagnoses before finally figuring out celiac was the cause of their problems. Your short gluten-free trial has already told you a lot, you feel better when you do not eat it!
But please, as EmiPark said, keep eating gluten while you are in the midst of testing. You won't produce antibodies if you are not eating gluten, and the antibody level can drop quickly when you stop.
Keep us posted how things go with your doc, and keep asking questions! Be sure she tests for these things:
Total Serum IgA
Deamidated Gliadin Peptides - (2 tests... DGP IgA and DGP IgG)
Endomysial Antibodies (anti-EMA)
Tissue Transglutaminase antibodies (IgA is usual version, I'd ask for IgG too)