Hi Sassafrass
Welcome to NeuroTalk

.
I have some thoughts which I hope you will find helpful.
"
I have MTHFR"
Has this been diagnosed by genetic testing? You can use the Search command here (
https://www.neurotalk.org/search.php) to find threads in which MTHFR has been discussed.
"
I have Charcot Marie Tooth"
You can use Search to find threads here about this as well.
"
My family doctor believes I have mitochondrial dysfunction"
Did your doctor come up with a more specific diagnosis than that?
All the best.