Sgpt-billirubin

this is very serous problem  abot SGPT &BILLIRUBIN levels...i had hgh levels (56-189) frm April 2010 it keeps on moving up &down .... i had consulted many doctors (gastro specalist) i had gone thru many tests lyk all the hepatitis .... they all are negative... but still my LFT  not becoming normal..... i had a test of liver & that also is normal........i dont know wt to do i visit th doctor & he told me to take the tablets like hepamerz & liv 52DS  & to be n a normal diet ...........i had stopped drinking alochol frm last october 2010 .... .......plz help me ..wt to do....... i dont i dont have any symptomps of any jaundice ....my urine color is clear no yellowish color ...no pain in stomach .... i dont knwwt s happning to me.... plzz is it normal that SGPT levels go up& down......recently in december2010 my SGPT WAS -43
but now in feb2011 it was 117...plz help meeee