Elevated liver enzymes
could be caused by a number of factors.
viruses and other viral diseses such as mononucleosis
can cause this. Certain genetic enzyme deficiency can do this.
In western culture, alcohol is number one cause. Next is
and bile duct issues, pancreas problems can cause
liver test abnormalities. Most importantly, drugs both over the
counter and prescription drugs can elevate liver enzymes.
Auto-immune diseases such as lupus, rheumatoid arthritis
affect liver and kidneys.
I am glad that your MRI tests, endoscopy and other blood
work were all normal.
As for Flu shot causing elevated liver enzymes , clinically we
don't see it unless as part of severe allergic reaction
to the shot.
Influenza virus itself can cause elevated liver enzymes during
Hope this gives you some idea of where to look.
I wish you well.