I have elevated liver enzymes and random pain in the liver area?

Im 30 years old. the first time i became aware of elevated liver enzymes was 4 years ago during pregnancy. I got tested again this past christmas and it was stil high. got tested a motnh ago, and it was STILL high. The number was around 100, but was suppose to be under 40 or so. I went today to get a ultra sound of it ( i have to wait until next week for results). where she was putting the thing i asked " is that my liver". she said "yeah". ive had random pain periodically in that exact location for years. im also obese at 220 pounds my high weight being 250. i also had all the hep test d uring pregnancy they came out negative, and once sxince then it was also negative. What could be wrong with me?