My 6yr old daughter has a mitochondrial disorder, lately she seems more tired and is eating less by the day. i don't know what to do?

See below: See your genetics specialist and see if there is other treatments that can be done.

Global plan: You may want to contact the mda if you have not so far so they can help you with a global plan for care. Under nutrition is a soft progressive spiral to muscle loss, decreasing activity and increasing dependency. Placement of a gastric button with nightly infusions of nutrients can bring a kid back up to positive balance and preserve activity. Lesser measures may help.Good luck.