thank you for your comments
Assuming you were SVR (cured), i.e. non-detectible for HCV virus for six months after stopping the treatment drugs -- then the virus probably has not come back. There could be other causes for the elevated ALTs.
That said, given your elevated ALTs, I'm pretty sure your specialist will run a battery of tests, including a viral load test. I would certainly ask for a viral load test if my ALTs elevated like that.
Good luck at your specialist's visit, and please stop by and let us know what you found out.
-- Jim