hi if you dont mind i can offer you some good advise

tmj, fascial or trigeminal nerve neuralgia, eagles syndrome and similar conditions all have their similarities and some differences but the main crux is that they all may be caused from myofascial tightness. the cause of the myofascial tightness may be and commonly cause by an arthrogenic components such as the cervical segments of the spine C0 to 4 and C5 to T10 for deep cervical fascial restrictions and the TMJ itself. these need to be cleared first and foremost before anything else. then the myofascial meridians usually the ones that connect the arm to the neck need to be assessed and cleared see tom myer myofascial meridians and fascial manipulation by italian physiotherapists luigo and carla stecco for further information. once these have been cleared it is important to clear the cervical and brachial plexus to assess the integrity of the nervous systemand then finally assess positions/ direction of ease through treatment direction tests and then block compensatory patterns while performing control exercises of the jaw. google tmj exercises articles for further information. finish with muscle activation with movment of the deep neck flexors.

to summarise release contributing joints of the neck, hyoid bone and jaw itself then release the myofascial planes of the arm and neck ; sternocleidomastoid muscle is the bridge usually affected in TMJ conditions. release the cervical and brachial plexus with neural mobilisation and retrain the deep neck flexors and jaw muscles to function normally.

all these things should be assessed by a competent physiotherapist that has strong skills in manual therapy and myofascial therapy