I hope this doctor is able to help you! I used to take my DD2 to a craniosacral therapist, and it helped her so much! I know it is not the same, but I understand the uncertainty that you are feeling. I apologize for not knowing all of the "lingo", but here is our experience...
DD2 was born with torticollis. Her head was tilted due to a shortened muscle probably from being cramped in the womb. The pediatrician kept telling us that it would go away with time and he showed us some exercises that were supposed to help. At 3 months she was no better, and she was getting a flat spot on her head due to the head tilt. In addition, she had severe reflux, and she cried all. of. the. time. Then she would start inconsolably crying at 6pm until about 9-10pm when she finally passed out from exhaustion. Nothing we could do to make her stop crying. She was also on reflux meds, and I was on a very limited diet in case she had allergies to my breastmilk.
Anyhow, my MIL talked me into taking Bear to a craniosacral therapist when she was 3 months old. After the first session, she slept for 5 hours. She was finally comfortable, and *I* was crying in relief. Like others have said, the effects wore off after a couple of days. The therapist didn't work on her neck issue the first time we took her, because apparently Bear was directing her to other issues that were bothering her more. She did work on her neck at the second appointment, and afterward Bear was able to hold her head up straight for the first time ever! I cried some more, lol, we took pictures and called our families. We were so relieved and amazed! Each week that we took her, she was feeling better and her head was staying straighter for longer and longer periods of time. I kept taking her for many months, because I was afraid of stopping. It just helped her so much.
I took her again for just one appointment at about 13 months. Bear was walking by then, but slightly dragging one of her legs. I did not mention it to the therapist (nor did she see her walk), but she found a problem in her hip and unwound it. Bear had not had any problems walking since!
One other thing that I found interesting is that at the beginning of each visit, the therapist would feel Bear's spinal rhythm by placing her hands on Bear's back. Bear would look her straight into the therapists eyes every time. Even at 3 months old, it was like she knew what the therapist was doing and was okay with it. DH's uncle is also a craniosacral therapist. He tried working on Bear once when she was about 5 months old. When he placed his hands on her back, she looked him right in the eye and started screaming! No way was she going to let him work on her, but she always let our therapist do it.
Wow, that was long! All to say that I was so skeptical of this type of thing in the past, but I am a believer now! I hope you are able to find relief!