Hpv can be spread orally but this doesn't happen very often.... this also doesn't sound like HPV.
The only way you would really get oral HPV is through going down on someone who had genital warts. Oral HPV is rare, and a black dot dosen't really sound like a wart. However, there is little known about it so it is difficult to know what they look like. In most cases, they are either the same colour as the tongue or white. You may want to go to the doctor, and asked to be refered to an ear nose and throat specialist or go and see a dentist.
When it comes to genital warts, the only way to know if you have it is by having visable wart symptoms. That is the only way a doctor can diagnose you, by looking at the warts or taking a biopsy of one to determine if it holds the HPV virus. As you used a condom, it is unlikey you caught anything, but possible. To ease your mind you should go to an STD clinic if you do notice any bumps down below, and also get tested for the other things just in case. As for your tongue, I doubt its anything to worry about, but you may want to get reffered just incase. It's probably nothing, but you never know.