Have they taken a look at his stomach, i.e. upper endoscopy and/or upper GI x-rays? Sometimes the exact location where someone feels the pain doesn't correlate exactly with where the pain is coming from. the body only has just so many ways to express pain, and diagnosis of abdominal pain in particular can be challenging.
Also NASH isn't the same as cirrhosis. It stands for non-alcoholic steatohepatitis, and can progress to cirrhosis but is less severe. Also, unless they did a liver biopsy (which I doubt from your story) there is no way to differentiate NASH from the less serious NAFLD, i.e.nonalcoholic fatty liver disease, aka fatty liver. Here is a link to more info:
http://www.niddk.nih.gov/health-inf...nonalcoholic-steatohepatitis/Pages/facts.aspx
so while I'm not suggesting that hubby's liver problem should be ignored, they may have alarmed you unnecessarily. I would recommend discussing this with his regular doctor.
Of course none of that explains what's going on now, so I hope further testing will be done so they get an answer for you, and mostly I hope hubby will be feeling better soon.