Hello Howard,
When did you finish the Maviret?
It certainly needs looking into. We do see some bilirubin rise with both Viekira and Maviret and this we ignore because it happens to most patients and goes away after treatment.
Both AST and ALT are released by damaged muscle as well as liver so we do see this happen occasionally in athletes.
Any drug can cause some liver toxicity (including Maviret) in rare individuals.
The list of causes of liver enzyme increases is quite long - here's the Mayo version:
www.mayoclinic.org/symptoms/elevated-liv.../causes/sym-20050830
You and your doctor are going to need to work through that list.
If you have a positive surface antibody then you should be immune to Hep B. Your positive core antibody shows this is from past infection. This surface antibody wipes out the surface antigen that Hep B produces (in excess) in patients with chronic Hep B. So it's really unlikely to be Hep B - the virus can't assemble without the surface antigen (this is actually part of the stucture of it).
I have seen CMV reactivation do this, but as you can see from the Mayo list there are lots of causes that need to be excluded.
Diabetes is 3x more common in patients with Hep C and it is common full stop. Your 152 suggests you are probably going to be diabetic but should just be checked a few times before doing anything. High blood sugar causes damage over decades and 152 would be pretty good for a diabetic (on treatment) so there is no need to panic about this.