Help for an undiagnosed kid

[Traceu]

He's 3. Name is Garrett. Has yet to speak or walk. In a wheelchair, on a 
feeding tube. Here are some of his stats...

*seizure disorder
*projectile vomiting [after seizures]
*delayed gastric emptying
*develomentally delayed
*non-progressive muscular dystrophy
*underlying mitochondrial disorder "suspected" as a culprit
*brain atrophy [no myelin]
*elevated lactic acid and  pyruvic acid

Any tips, pointers, etc. welcome.

Thanks.