i think you should be evaluated by a hepatologist. the raised liver tests could be many things including fatty liver but methotrexate can clearly be associated with causing liver damage.
Im in my second year and the levels just started changing over the past two months. I started with tablets (8) 1x a week but they made me sick all the time so we changed to the injections of 1 ml 6 to 8 months ago....
you may be correct. how long have you been taking the methotrexate?