Thank you for the feedback i appreciate it. Ill post what i find out after following up with my doctor.
Antibiotics have been know to affect liver enzymes, in both a hepatocellular and cholastatic manner. Amoxicillin can do this even after you've stopped taking it, but this is uncommon. Do you have any other symptoms like joint pains or rashes, no mild allergies to antibiotics?
Also, vigorous exercise can cause elevations in your AST levels as well, as you suspected. This may account for the elevation bias between the liver enzymes. So certainly getting your blood work redone, after clearing out for a few more weeks (maybe a month just to be sure), will give your doctor a more accurate bead on things.
Let us know if things work out for you, take care.