Two opposing positions here sjburton.
True peanut anaphylaxis seems to be more common these day's, and probably not the best trait to have in a pilot.......common symptoms are sudden collapse, swelling of the structures involved in maintaining an airway, death etc.
Or you could just get an itchy rash when using peanut shampoo, (like I do).
I'd probably go back to whoever labelled you as having a "peanut allergy" and take it from there.
Generally, laboratory findings from immunological blood tests are unhelpful.
Your AME would be more interested in the bit at the top of my post :-)