Connor's Genetic testing

As a lot of poeple know we have been trying to find out what is going on with Connor since he was 1 year old. The only option we have left is a full spectrum DNA test, which would let us know exactly what his diagnosis is. We have been running genetic test after genetic test and have had no luck in finding out why he has only grown 1 inch in the last 7 years. Connor is 35 inches tall and weighs 25 pounds at 9 years old (he will be 10 in November). After a few years of battling with the insurance company, they finally approved growth hormones, only for his doctors to tell us that it isn't a good idea, since he does not have an actual diagnosis. The test he needs costs $10 ,000 and insurance does not cover genetic testing. We are already overwhelmed and struggling with all of the doctor bills from his previous testing, as well as Timmy's kidney issues, but we really need to get a proper diagnosis so he can get the assistance that he needs for school and his health in the future.