I feel like the muscle supposed to support the mandible from under (onthe throat) are underdeveloped and that Leads to a chin Tuck when mewing, and when trying to push the mandible Up when mewing Leads to spasm in that area, like Theres No muscle.
Could IT be?
Spasm are a good thing. They mean that the muscle has been slacking and is now returning back to your conscious control. I would encourage you to search for similar spasms all over your body, because getting certain sleeping muscles to wake up will result in very quick postural and motorical improvements.
I got what You mean now Ive been playing with the chewing and realised that my left side are weak ass hell.
I have an lateral deviation to the and tighting the muscle up on the left side (weak side) under my mandible Will actually put my mandible in the right place!
Should i train that side Up? Damn realised how scrweded im are haha