I'm so sorry you're going through this, and I hope things improve soon! On an optimistic note, I had a similar experience a few years ago (but without such elevated liver enzymes) and have improved hugely since going gluten free. I'd originally had almost constant rashes since I was six years old, a very irregular menstrual cycle ever since I was a teenager (sometimes with months between cycles), and diarrhea and stomach pain after eating since I was about 16 (I'm 38 now). About thirteen years ago I got a constant tingling and intermittent numbness in one leg, joint pain, fatigue, and frequent night sweats. About eight years ago the leg tingling got worse and sometimes my whole body felt shaky, and my coordination and balance started to worsen. I went to many doctors dozens of times about all of these things, and no one found a cause. Then, three years ago, everything suddenly worsened drastically. My legs gave out at work and for hours I couldn't regain my balance enough to stand up. I couldn't remember the days of the week and forgot common words. It was terrifying. I eventually managed to get home and went to the ER, where they were initially concerned that I was having a heart attack or stroke (even though I didn't think that was the problem - but I had no idea what was going on). The ER ran a bunch of tests and released me to follow up with my primary care doctor, who said my mineral levels were just a bit off and it was nothing to worry about. She thought the memory loss and balance problems were stress and prescribed anxiety medication, which didn't help at all. A week later my muscles gave out again and I dropped my infant daughter - fortunately, someone caught her and she wasn't injured. I fell down the stairs and banged my head more times than I could count, because my balance was so bad. A nurse finally told me to go to a larger hospital where there was a neurologist on staff, and during the memory test in the second ER I couldn't even remember who was president. They admitted me and ran several MRIs, but again found nothing wrong except for a positive ANA and some not-alarmingly-abnormal vitamin levels. They sent me home with no diagnosis two days later, having at least ruled out MS. The whole thing was the most terrifying experience of my life - I thought I was dying, and I couldn't even hold my baby or stand up straight for weeks. I was not tested for celiac, and none of us even considered whether there could be a dietary cause for all this.
The GOOD news is that I finally figured out on my own that a medication (Ambien) had caused the sudden worsening of symptoms. They kept giving it to me in the hospital, which made the original, long-standing problems much, much worse. I stopped taking it and with a week I was able to walk normally again. The balance and coordination problems improved enough that I went back to work. But I still felt pretty awful. Then, last spring, I finally figured out that gluten could be the problem. My daughter was diagnosed with celiac, and her symptoms were very similar to mine. My own blood tests and biopsy were negative. However, I went strictly gluten free anyhow, and I feel great! Seriously, I feel better than I have since I was a little kid! Rashes, stomach pains, diarrhea, and menstrual problems went away within a few months. The balance and coordination problems have taken longer, and I still don't feel normal, but I no longer fall down stairs and walk into door frames all the time. My memory is not great, but I rarely forget common words anymore. I'm confident that things will keep getting even better. If anyone had asked me when I was in the hospital a few years ago, I would have said I thought I'd either be dead or confined to a wheelchair by now. None of the doctors had any clue what was wrong with me. It was so incredibly scary. I though I had early Alzheimer's or Parkinson's or something. But it turned out just fine! Oh, and my previously-positive ANA had actually become negative at my last blood test!
I know this is just one anecdote (sorry for the length!), but healing from these problems definitely is possible if gluten is the cause. And I apparently don't even have celiac, so I'm very glad that I ignored the negative tests results (and ignored my previous doctors' skepticism) and made our whole house gluten free anyway. I really hope you see steady improvements from here on out. Please keep us posted.