Yeast Infection During Pregnancy?

I am 11 weeks pregnant with my second baby and had my first prenatal exam with my Nurse Practitioner a few weeks back. She did a pap, since I was due for one anyway. My results came back fine, no stds, or hpv, anything like that, but was told I have a "minor" yeast infection. I have absolutely no sypmtoms to a yeast infection at all. No discharge, itching, burning, smell, nothing like that at all. I have also never had a yeast infection before. Could she be wrong? I mean I know its kind of odd to question the nurse practitioner, but wouldnt there be some sort of symptom? Also, I have hyperthyroidism due to pregnancy. Not "hypo", hyper. Which means my TSH is low, and my thyroid produces too much hormones. Could a "minor" yeast infection be from that? I didnt have any of these things with my first child, but that was almost 10 years ago. So everything is a little new to me, since its been so long. Any feedback from women who have prior experience with this is helpful. Thank you so much!