Just an aside: The Soft Machine was one of my all time favorite groups! Robert Wyatt in his first three albums with the Soft Machine was a phenomenal talent, and his voice has rarely ever been equalled in the music world, as well as the avant garde progressive jazz/ psychedelic rock songs that the group created. Sadly they soon re-organized, and drifted into unfocused directions, never achieving anything close to their initial works.
I don't know if your nick name has any intentional relationship, but that is the history anyway!
DoubleDose
do whatever you need to do to feel ok vis a vis the testing. three months is fine though.
the bigger issue is why, with strong suicidal ideation, you aren't more worried about that? Because right now, that's the bigger thing to focus on. You're depressed and having suicidal thoughts, so you need to take care of yourself by taking care of yourself in that arena before anything else. Sometimes depression makes it hard for us to prioritize. Or so I've found in the past.
That's a lot of symptoms. Might be Hep C, might be something else, who knows? 3 month negative is a very good sign re Hep C (I tested positive within 3 months). I suggest keep in regular contact with your doctor re what you may or may not have.