Hope, I get that too. It is sort of funny but very strange. I had a single mastectomy so I have one natural breast & nipple and one implant reconstructed breast with no nipple. (I replied to this post because the itching problem happens to some of us whether we've had reconstruction or not).
If it has been many years since a person was infected with TB, his or her initial skin test may be negative, because of waning immunity. Subsequent tests may be positive, however, because the initial tuberculin placement stimulates the immune response to the test.
In brief: Not Likely. It is unlikely that Neurontin (Gabapentin) will trigger a false positive urine test for drugs. However, if you are taking other medications then these medication may alone or in combination with Neurontin trigger a positive urine screen. Also, poppy seeds and other foods, fermented or otherwise may result in positive screen.