Yep, C is on his 14th or maybe 20th - I've lost count! - feed of the last 24 hours. An LC could work wonders for you. I was ready to quit day 3 when my baby was hungry, screaming, couldn't latch, and I didn't have that wonderful magical hospital call button anymore, that I could just push and help would arrive :) Keep going!
If they check for tongue tie and decide to clip it - C was back to normal about 2 minutes after as soon as I nursed him so it wasn't a huge deal!