What is going on

One night I woke up and could not move. I went to the ER and my Potassium was 2.1 One year later I was just diagnosed with Mito and I am scared out of my mind. I'm 32 years old an about to have my first child. 

What am I looking at? CO-Q10, is this for real? Each day my shoulders are weaker and weaker. My head is hard to hold up and I have little stamina. I'm always tired in the morning but am awake at night. 

My main concern right now is Diet, What should I be eating? what should I stay away from? 

WHATS THE PLAN? 

Thanks 

Tommy C