Lip tie

Any mommas have experience with a lip tie?? I think my LO may have one but I’m not entirely sure. She has an appointment coming up with her Pediatrician and I’m going to ask her if it is indeed a lip tie or if it’s normal tissue. Do y’all possibly have pictures I can compare with hers? I feel like if it’s not one thing with my poor girl it’s another and I’m super paranoid she’ll have to get it clipped. We did have a hard time breastfeeding as she wouldn’t latch without a shield so we eventually stopped because between that and low milk supply I couldn’t keep up. Thanks in advance for any advice or personal experiences.