I just have to tell you that I had no idea what a cranial-sacral therapist was when the LC suggested it, and when I looked it up, it sounded goofy to me. I was thankful that we had another route to go that I at least had some experience with.
I see a chiropractor sometimes more frequently, sometimes less frequently because of neck problems. It is a big help with headaches that I suffer from. Despite that, I was totally shocked that they could help my son's suck. It was really so obvious, though, that I couldn't dispute it.
The day I first went to the chiropractor I got a phone call from a friend of mine. I asked her to ask her LC friend what good a chiropractor could do. I got some explanation that way, but this LC ended up referring her own daughter to my chiropractor because they hadn't been able to get her baby to nurse but she hadn't known of a chiropractor close enough who had experience in this area. (It was still probably an hour drive for that lady.) There really must be something out there in the LC world that shows good results with this. (The LC's granddaughter did start nursing, too, by the way.)
I will keep following this thread to hear how things are going.
Let me ask, though, you mentioned that he's taking some of your expressed milk after his nursing, but I wasn't sure how much he's getting in a day. My little guy needed upwards of 20 oz at that age, but he wasn't a small or preterm one, so that might be high for yours. Has the lactation consultant given you a number to aim at? (We couldn't always get that much into him because his suck was so poor that even the bottle exhausted him. It was such a hard time. He was sleep deprived because we just tried to feed him all the time, and we were both sleep deprived from doing the feeding, pumping, washing, and reading to a two-year-old.) I do feel for you and hope you are able to get some good help soon.
I'm glad you're having another consult. Please keep me posted.