Hello,

Well i know that but those qualifications by my knowledge would had been able to assess and treat the specific issue as it sounds as an Upper cross syndrome. The NAMS CES offers the solution to see an PT or Physio and perhaps Osteopath, further cause the CES works on upper and lower cross syndrome also applies the specific strengthing and stretching with specific tempos and exercises and guide for hands on tools that a therapist may have. Lastly the CES was added due to the luck of suggesting a physio, PT, or osteopath in Netherlands cause i dont know anybody over there.
Nonetheless i will disagree for the specialist on spine or trunk since that is not the case as much as a simple muscular imbalance. Upper amd lower cross are consider as typical situations and even a fresh graduate can and should work on them.
I will strongly suggest to have a look at the book: National Academy of Sport Medicine, Corective Exercise Training. Has some really good info on upper lower cross rehabilitation approach for young people and adults and is quite cheap.