9lbs 11oz and 23 3/4 inches

4 months old...but tongue tie was just discovered today. The one I tried to tell her about months ago.  I had to stop breastfeeding at 2 months because she wasn't gaining weight. 7lbs at 2 month check up. 6 at birth. Should I be mad that something that I tried to tell pediatrician about and she said was fine was just discovered and isn't fine? Actually she said it was really bad.  We will be having it clipped soon. Baby is fine, gaining, and healthy, but I'm just a tad frustrated that my concerns were not heard and I could've continued to breastfeed.