Health visitor or doc @missy84 and if they feel she does have lip tie and its bad enough they will refer her for an appointment to have it looked at and possibly cut wer waiting at the moment to hear back off them for harriets tongue tie x

My girl had a gap in her front teeth but as they get older and more come through it pushes them together and by sides a gap is lucky :) sorry i cant help with the lip tie but give your health visitor a call she can refer you xx @missy84