I have a friend whose son was having speech problems and no one knew what was causing it. He was 5yrs before someone figured it was tongue tie. they clipped it and his speech improved but he has lasting effects from it. This is my only experience with tongue tie so I am certainliy not an expert. Since early speech problems have lasting effects I would certainly consult someone about it if I were in your shoes.
Best of Luck!
Best of Luck!