If you think you can see tongue tie, def. get it looked at by a pro, if it is that then once it's fixed, and DS has had time to get a feel for / adjust to his 'new' mouth (and once you have healed) things should improve quickly. Also see a LC. Big hug in the meantime, DD didn't have tongue tie but had latch and position issues and I too went through a fear of pain/dread phase. It is very disarming emotionally/mentally.