@myminnie, Dear Julie, I would like to welcome you to Connect. I am sorry to hear of your current health concerns. Do you mean emergency dept when you say ED? If so, then unpleasant as it sounds, be happy that they discovered it and have referred you for further testing.
My history with liver disease is not due to nonalcoholic fatty liver disease (NASH). But, I did have my share liver biopsies. They are not fun; but they are not that bad either. After you are numbed, the doctor will take several samples with a needle like probe. Pressure is the only thing you should feel. The worst pain for me was the 'bee sting' feel of the initial numbing prick. Afterwards I had to remain in a reclined position until concern for possible internal bleeding was past. Some people are sore afterwards.
The biopsy will show what is happening inside your liver: is there any damage, and if so, at what level. Your doctor will let you know when he gets the results from the biopsy. You will be able to discuss these results along with the other results that you already have.
I want you to thing positively. The liver is a remarkable organ. Sometimes, with treatment, this amazing organ can recover.

Here is information about NASH from the Mayo Clinic. You might want to share it with your children.
http://www.mayoclinic.org/diseases-conditions/nonalcoholic-fatty-liver-disease/home/ovc-20211638
And here is a recent webinar that contains some useful information about diagnosing, education, and treatment. You can skip the transplant part. https://connect.mayoclinic.org/discussion/webinar-topic-fatty-liver-disease-and-liver-transplantation-for-adults-and-children/

Julie, Let me know if you have any questions.
Rosemary