T usually spikes when your sick, especially if you are feverish. Hopefully it will go back to baseline once you are better. I know Covid can cause hearing loss but it's not a guarantee, so hopefully it will pass without any issue. Maybe try and get paxlovid, if it is isn't ototoxic - I've never checked.
Sorry to hear you caught COVID and that it worsened you. So often, people end up back here due to an illness, medication, or exposure, etc. worsening their condition. Hopefully, once you recover from COVID, your tinnitus will return to the previous baseline.