UREA cycle / ammonia

Hello everyone. My first post to the forum.

My ammonia seems high from an urine OAT, and Urea level is low (below normal) from routine blood tests for a while. I do a have Choline-related SNP that requires my daily choline intake to double up. I do also have a NOS3 mutation sitting right within the UREA/BH4 cycle.

Wondering how would you identify an Urea Cycle Disorder(UCD) and treat it with a holistic GP. I’m based out Sydney/Australia. My experience with several so-called holistic GPs are not good and they seem to extract money rather than having an objective discussion and treatment plans. Thank you.