I agree that it's early, Dr. sounds like he's taking the right steps ordering more tests. As Fam said, be VERY observant about voice changes, snoring changes, trouble swallowing, etc. I had symptoms for YEARS before they found out I had thyroid cancer (not to scare you, it's not likely that you do
) Have you already had your blood taken for the extra tests? If so, when you see him again to go over results, I would definitely request an u/s if he doesn't schedule one. Good luck with your health and the twins!