Hi Mary,
I have AIH. My initial levels were ALT 848, AST 748 and my bilirubin peaked at 23.3. I wouldn't make any guess but you're probably thinking right that it's AIH or drug-induced. With your history of autoimmune issues, I would lean more towards AIH. Don't sweat about your levels. I have heard of folks close to the 10,000 mark and are still fine after medication. Be sure to see a liver specialist (hepatologist). The defining test after they've run all the bloods will be a liver biopsy. Don't fear that either. I had mine the transjugular route as I wasn't clotting due to the damage in my liver. The traditional way is percutaneous. If you need one, they'll explain everything.
Please don't stress about any of it yet. I know it's easier said than done but Connie is correct, it's a waste of energy and you'll give yourself an ulcer...you don't need that!!! You'll know more with your new lab work.
The naproxen won't be good for your liver...or any of the anti-inflammatory meds. Advil is allowed on occasion in smaller doses.
Good luck and keep us posted....no more drinking until you know what's up for sure...not even a sip!!!