[Nebasuke]

This might depend on where you are. If you're from the UK, the only way of getting this diagnosed within any reasonable time frame is a lactation consultant. Most NHS staff is not trained to diagnose tongue tie, which is not surprising given their historical roots.

Tongue tie was quite obvious for my first daughter (it even runs in my family), but hospital staff still refused to do a proper diagnosis and said it was fine. It was not, and impacted the breastfeeding.