Goldengirl: The difference between your Igenex Igm Neg and Igenex Igm Positive is just one of your IND bands being a +
It's very similiar to mine, but I did have a Positive IgM (Igenex).
Since your Doc feels you're positive and you have the symptoms - I think you should definitely get treatment. What have you got to lose? You can always change your mind down the road.
I understand how you feel, though. I have a positive test and still question it today - I say things like, "Well, it's not CDC positive", or "It's a weak Igenex positive"...etc. But, I've been treating (Buhner protocol since mid May) with antibiotics for almost three weeks, and I'm pretty sure I experienced herxing.
Be patient, give it a chance to work, you've got nothing to lose.
Good luck!!