hepatitis c
"I was told in 2004 that I tested positive for Hep C. Nothing was done about it. My liver enzymes were always off the scale, but no civilian doctor made much effort to diagnose the problem. Some seem to think I may have contracted it through a blood transfusion in 1985. Who knows? 
The VA convinced me to be put on a 12 week program of Harvoni. So as it turns out I'm a Genotype 1a with a viral load of over 1.4 million. The first week of drug therapy I had trivial side effects, but no big deal, mostly headaches subsided by drinking more water. I had insomnia already so I can't say the Harvoni effected it. 
Now, 34 days later, my blood tests show my viral load below 15. It definitely works."