gingeranne—
I know exactly what you're experiencing. It is crazy. As if we don't have enough to manage on a daily basis just getting through treatment—you're slammed every now and then with this paralyzing condition.
I have hetero (1 copy) of M677T and A1298C mutations. My lymebrain has taken over today so I can't remember which is which—but one of the mutations affects metabolization of sugar, heart issues, and something else. And the other affects neurotransmitter levels and something else. Sorry! I'm not much help today. But there is a website that is really great—
MTHFR.net-p