Grade 2 fatty liver treatment. Effect?

I got liver profile test in September last year and in February this year. On both reports, Alkaline phosphate was around 300. However other parameters on both liver function test were normal. I also got stomach ultra sound on 18th March last month. The report result says, "Hepatic Fatty infiltration grade 2", needs correlation LFT" I do not eat non veg and do not drink alcohol. Question 1: is it a dangerous situation and irreversible? Question 2 : Can I treat it with diet and excercise? Or need to take allopathy tablets? Question 3: Can i take apple cider vinegar empty stomach daily in morning? Will it have any side effect? Question 4 :  I am also suffering with grave hyperthyroid and Atrial Fibrillation for 29 months and taking daily blood thinners, BP tablets, thyroid tablets and daily take pantocid in morning.  Does these tablets have any side affect which caused fatty liver Kindly answer all 4 questions.