Even before I appreciated that you have been tested on multiple occasions for both HIV and syphilis, I had concluded that the symptoms you describe are unrelated to your condom protected sex in 2008. That you have had multiple negative tests since that time confirms this impression. You do not need to worry that you might have acquired HIV, syphilis or other STDs from your prior episodes on condom protected sex.
sorry i forgot to add that i have a appointment with the dentest to remove both wisdom teeth next week.