What if your experience is simply the continual gradual recovery process and has actually nothing to do with any antiviral treatment? You were 6 and climbed to 7.5 in two years, and this year climbed 1 point. A move from 7.5 to 8.5 is 14% improvement, compared to a climb of 1.5 (my case) to say 4 which would be a 166% improvement. The number are a bit arbitrary but I'm trying to illustrate a point. Good luck with your recovery either way