See a doctor if you are concerned, it has nothing to do with HIV.
If you used protection then you never had a risk of HIV infection.
Night sweats are consistent with many other viral infections, not just HIV. You might also be hot if you turned the AC off :p. I say this because protected sex is essentially zero risk, provided condoms were used CONSISTENTLY & CORRECTLY. If they were, you have zero risk. If they weren't, its' a good idea to get tested. Not because of your symptoms but simply to know your status.