Any test is conclusive after 3 months so you are good.
Let's talk about your risk situation first. You don't know if you had a risk or not and there is a 50/50 chance you didn't really risk transmission of HIV. HIV is only transmitted by the act of unprotected vaginal or anal sex with penetration or sharing IV drug needles. Worst case scenario, you had unprotected vaginal and anal sex, it still poses a very LOW risk of less than 2 percent IF they are HIV positive, and ZERO if they are HIV negative. So, in reality, very little risk was actually involved under the worst of circumstances and you don't actually even know if that happened. So, you are over worrying.
Second, testing. You have tested a good deal. ALL tests are accurate at 3 months. Doesn't matter the type of generation, at the 3 month part, you can trust the result. You tested conclusively negative months ago. Your tongue has nothing to do with HIV. Your partner's tongue REALLY has nothing to do with HIV. At this point, you are sound to be suffering from anxiety and a guilty conscious. You gotta let that go and move on. You don't have hiv.