You had zero risk so you don't need to test.
HIV is instantly inactivated in air and also in saliva which means it is effectively dead so it can't infect from oral. So those are 2 reasons you had zero risk. Double zero risk. It doesn't matter if you and he were bleeding at the time either because it is effectively dead.
Only adult risks are unprotected penetrating vaginal or anal sex or sharing needles that you inject with.
Even with blood, lactation cuts, rashes, burns etc saliva and air do not allow inactivated virus to infect from oral. The above HIV science is 40 years old and very well established so nothing you can add will make it a risk.
Your tongue symptoms are self-diagnosed, so likely to be incorrect, but your dentist or doctor are the go to people for diagnosis. You interact with other people so the odd sore throat is to be expected.
If you can't relax after learning that you had zero risk, then consider therapy because 4 months is a long time to be living like this.