Even if she had HIV, the odds of transmission from a single unprotected exposure are very low,
on the order
of 1 in 2,000. Further, localized
yeast or other fungal infections -- of the penis or anywhere else -- are not a sign of HIV. Such things occur all the time in perfectly healthy people. Your other symptoms (sore throat, runny nose, etc) almost certainly are exactly what they sound like: you caught a cold.
And you had a negative HIV test.