I have a number of things I do to pass this pregnancy test to avoid the inconveniences of a false positive diagnosis. I don't have symptoms. While some women who test positive don't feel symptoms (dry mouth, excessive urinating, cravings, sickness after high carb. foods, etc.), they are rarely re-tested to see if it was false positive. Many things can affect your blood sugar during the test: sleep, sickness, stress, etc. I wouldn't be too worried if I tested positive. I wouldn't be too sure it was right! That's my two cents.
For the one hour alternative food test, my medical practice doesn't require a fast, but that doesn't change your recommended protocol. Which was: