Like Dr. Sears, Dr. Denise Punger of Permission to Mother, a board-certified family physician and IBCLC, performs frenotomies in her office. She describes common symptoms related to tongue-tie in this post:
If you have sore nipples from the first latch like the baby is biting or gnawing, a tight frenulum should be evaluated for. If there is poor milk transfer with weight loss, jaundice, or decreased urine or stooling, consider checking for tongue-tie. If your IBCLC, midwife, or postpartum nurse nurse tells you they think your baby has tongue-tie, especially if you live in my area, they are usually right-on as I have been working with them for over 12 years and many of our breastfeeding supportive have been around long before me.She also discusses posterior tongue tie here.