Pixel42
Schrödinger's cat
This is an example of the sort of faulty working of the memory that leads to erroneous beliefs like yours in the first place.And how is a correct prediction based on the GSR reading not a positive result.
Despite reading, and apparently understanding and acknowledging at the time, the posts which pointed out that the only thing your test with the doctor showed was that your polygraph was unreliable, you have already gone back to remembering this test as a hit.
If your memory is so unreliable about something so recent, it could also be misleading you into remembering far more cases of people seeming to know what you were thinking, and far fewer cases of people obviously not knowing what you were thinking, than actually occurred. It's a well known and well understood phenomenon called confirmation bias. I'm sure you've been pointed to links about it many times previously but as you seem to have forgotten perhaps it's time to refresh your memory:
http://www.skepdic.com/confirmbias.html