My forehead width is narrower than my jaw and cheekbones width, resulting in a pear shaped face. Is a narrow forehead a result of CFD or is it just genetics and cant be corrected?
I believe that a slight widening and lengthening in the forehead around the temples area might be related to a more favourable position of the sphenoid. Take a look at before and afters of people who get NCR/nasal balloon therapy, the purpose being to nudge the sphenoid and ideally put it in a better position. Note the forehead change. I believe mewing will achieve a better position of the sphenoid but it's much more subtle (and my opinion, more stable).
Remember this pain... and let it activate you.
Yeah I'm pretty sure that's genetic. Mew away and see what happens, it's valuable data for future people.