hi 1056! pleased to see another trans person onboard.
its possible to have a genetic disorder that causes developmental issues but for that you need genetic testing,youd need to see your GP and give good reason [all the symptoms you have issues with] for testing.
i have a mouth difference [i cant remember the name of it] known to be related to my intelectual disability-i only found this out after coming across some journals from scientists,ive also got a lot of teeth missing on the top front-i cant wear dentures because of epilepsy,i dont know whether youve ever considered getting your teeth redone and having false ones or implants fitted?
i dont see or understand humans in the same way others do so i coudnt care less what they think of my gummy mouth,i understand it can be very hard to deal with though.