My son had tongue tie, and having it clipped (twice) didn't seem to help that much. We also had several sessions of cranial osteopathy and there was a VERY gradual improvement, but I honestly don't know if things would have improved anyway. One of the best pieces of advice I was given (when my son was 3 months old) was to wait until my son was definitely hungry before I offered him a feed - prior to this I was offering all the time, as I was worried about his weight gain. When I started doing this (and he would ask for food around every 3 hours), he would feed much more strongly and for longer, and seemed much more satisfied. Obviously if he was hungry before 3 hours was up, I would feed him, but I stopped always assuming it was hunger. I am now much better able to tell when he is hungry and when he wants something different. I don't know how old your baby is, so this advice may not be suitable for you, but I just wanted to share my experience.