Same here! I had one symptom -intermittent somewhat abnormal liver enzyme results- that was very easy to explain away with the fact that I'm nearly always somewhat dehydrated because I have trouble forcing myself to drink enough water. I had to run into a doc who was in the habit of running the test "just in case" because she had seen a ton of Hep C cases before the culprit was discovered.

Honestly, I'm really glad I didn't get diagnosed much earlier than I did... it's my understanding that interferon treatment is really awful to go through and has like a 50% success rate for Hep C infections. When I got diagnosed Harvoni was quite new, but it worked on the strain I had, and there were absolutely no side effects that I noticed. Its list price was shockingly expensive (something like 150k USD) but that's way cheaper than a new liver and -as is often the case with these sorts of things- financial "wizardry" meant that I paid like 5 USD.