ALT test elevated any signs of something?

My complete metabolic panel is 100% fine except for mt ALT (SGPT) which has risen the past few months from 54, 57,50,63,66 with the last 2 admittedtly on a bad diet and my lipid panel with ldl/hdl ratio is finei take low dose atenelol and lipitor which my doc says no need to stop lipitor ..70 lbs overweight..if all tests are within range except for alt is there a tell tell sign its just my diet/weight/fatty liver ?