Hep C false negative?

  What is the false negative rate of the Hepatitis C blood test?
  I was tested at the mayo clinic, with lots of suspicion, but
  it came back negative.
  ALT, AST, and GGTP have been mildly elevated for 8 years.
  Not all symptoms seem to fit together but include continouslow grade
  fever, extreme fatigue, heart palpitations, vague neurological
  symptoms, pain in upper right quadrent, chest pressure, weight
  loss but no apetite loss.
  US doesn't turn up anything except a small hemiangioma. No sign
  of fatty liver. Autoimmune liver tests (e.g.ANA) negative, no
  iron overload, or copper problem. (thyroid normal also). I am
  female, 37, no alcohol intake, and very thin.
  Could this still be Hep C? Any advice greatly appreciated.

[HFHSM.D.-D.M.]

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Dear FB:
Your question is really an excellent one and I appreciate the opportunity to address it.  
When most people talk about the hepatitis C

[flower123422]

A related discussion, how do I tell my family was started.

[mdnurs]

I have several autoimmune issues: fibromyalgia,  fatigue,  lichen planus x 20 yr, Hz of idiopathic lymphocytosis,  red post injury.   I am 47 y/o female.   I have had several punch bx suspicious of t-cell.  This was ultimately treated w the lichen planus.  My white CT is normal now, my liver ct's have been elevated.   I have been tested by various MD's for hep c.  It always is neg.   I am still young,  but feel like I am aging faster.   Do you have any idea for one Dx.  Thanks ma.  Maryland