Sorry to hear all is not well after treatment. One thing I regularly remind my patients about is this:
Getting treated for Hep C provides no protection from all the other diseases of ageing so if you are not right, particularly after treatment when the medications have washed out of your system and the virus is gone - then see a doctor.
It would be a good idea to get a viral load. While the success rate of Maviret is high it is not 100% so if you are 8 weeks out from treatment getting your old Hep C symptoms back there is the worry of relapse. Hopefully, that's not the case, but we do need to check.