Throat discomfort for 2 months..

Hello everyone. I’m 28y old female. I’m really tired of the problem that I have for 2 months. My problems of my throat started after I got covid. My symptoms were only throat pain + muscle pain in neck + dry cough. Now I’m dealing with red mucosa in my throat, it was first red on my gum behind my molar with little white spots like very little ulcers, now I have red mucosa without white spots. I had 1 painful lymph node (NOT swollen) on the bottom of my left jaw. I have a little burning sensation when I drink water. And my neck muscles also tighten slightly. I also have a slightly hoarse voice and I feel tired. I have a CT scan next week, but I would like to ask you if anyone knows what this could be. I’m so hopeless.